Complete the sentence with the words in the box.

contaminated untreated dead pollutant radioactive

effects dumped aquatic sewage poison

1. ________________ or wastewater should be treated before it is discharged into the river

2. More and more waste and ________________ are poured into the water, the soil and the
air.

3. The ________________ material is stored in a special radiation-proof container.

4. Oil spills can cause the death of ________________ animals such as fish.

5. ________________ sewage can spread disease and contaminate drinking water sources.

6. Cholera is transmitted through ________________ water.

7. The health ________________ of air pollution include heart disease, lung cancer, and
asthma.8.

Carbon dioxide is a dangerous air.

9. Over 150,000 tonnes of waste are ________________ annually along the coastline.

10. Up to 100.000 fish were found ________________ along the river last week.

Exercise 8. Choose the best option to complete the sentence.

1. She ________________ lunch by the time we arrived.

A. finished B. has finished C. had finished D. finishing

2. Bob will come soon. When Bob ________________, we will see him.

A. come B. will come C. will be coming D. comes

3. I will get home at 5:30. After I get home, I ________________dinner.

A. will have B. will be having C. had D. have

4. As soon as the taxi

________________, we will be able to leave for the airport.

A. arrives B. arrive C. will arrive D. arrived

5. I will go to bed after I ________________ my work.

A. finish B. finished C. will finish D. Finishes

6. I ________________ here when you arrive tomorrow.

7. I am going to wait right here until Jessica ________________

A. comes B. will have come C. is coming D. came

8. As soon as the war ________________ over, there will be great joy throughout the land.

A. are B. will be C. is D. would be

9. Right now the tide is low, but when the tide comes in, the ship ________________ the
harbor.

A. left B. will leave C. will have left D. leave

10. I am going to start making dinner before my wife ________________ home from work
today.

A. get B. gets C. will get D. got

Exercise 9: Identify the underlined part that needs correction.

1. When it raining. I usually go to school by bus.

A. When B. raining C. usually go D. by bus

2. I learned a lot of Japanese while I am in Tokyo.

A. I B. a lot of C. Japanese D. am

3. I have not been well since I return home.

A. have not been B. well C. return D. home

4. I’ll stay here until will you get back.

A. I’ll B. here C. until D. will you

5. When Sam was in New York, he stays with his cousins.

A. in New York B. he C. stays D. his cousins

6. Last night. I had gone to bed after I had finished my homework.

A. Last night B. had gone C. after D. my homework

7. I will call you before I will come over.

A, will call B. you C. before D. will come

8. Ever since I was a child, I had been afraid of dogs.

A. Ever since B. was C. had been D. afraid of

A. left B. this morning C. someone D. looked for

10. Whenever Mark will be angry, his nose gets red.

A. Whenever B. will be C. gets D. red

Exercise 10: Mark the letter A, B, C or D to complete the following sentences.

1. I will call you before I ________________ over.

A. come B. will come C. will be coming D. came

2. After she graduates, she ________________ a job.

A. got B. will get C. had got D. get

3. When I ________________ him tomorrow, I will ask him.

A. saw B. have seen C. will see D. see

4. As soon as it ________________ raining, we will leave.

A. stops B. stop C. had stopped D. stopped

5. By the time he comes, we will have ________________ already.

A. leave B. leaving C. left D. leaves

6. Whenever I ________________ her, I say hello.

A. see B. will see C. will have seen D. saw

7. The next time I go to New York, I am going ________________ a ballet.

A. seeing B. see C. saw D. to see

8. I will never speak to him again so long as I ________________

A. lives B. will live C. am living D. live

9. By the time Bill ________________to bed tomorrow, he will have had a full day and will
be ready

for sleep.

A. had gone B. will go C. goes D. went

10. As soon as I finish my report, I will call you and we ________________ out for dinner.

A. went B. will go C. will have gone D. go

years.

A. would be B. will have been C. will be D. am

12. After he ________________ breakfast tomorrow, he will get ready to go to work.

A. will have had B. has C. will be having D. have

13. As soon as he finishes dinner, he ________________ the children for a walk to a nearby

playground.

A. will take B. takes C. will be taking D. took

14. When Bill gets home, his children ________________ in the yard.

A. played B. will play C. will be playing D. play

15. He will work at his desk until he ________________ to another meeting in the middle of
the

afternoon.

A. went B. go C. will go D. goeée

12. Read the passage about Air Pollution and find the answers to the questions below.

AIR POLLUTION

We are nowadays becoming more aware of pollution matters that affect dramatically our
lives,

especially there is growing concern about air pollution. There are some reasons that lead to
this kind

of pollution. Firstly, the development of industrial zones, factories and building construction
areas is

producing a large amount of dust and poisonous air. Especially in developing countries,
people don’t

pay much attention to the air treatment process which makes the air pollution even worse.
Secondly,

because of the increasing urbanization, it can be easily seen that there is always a lot of
traffic in rush
hour and dust on the road these days. The smoke from vehicles and manufacturing exhaust
increases

the amount of carbon dioxide in the air which makes US feel really hard to breathe. The

consequences are very bad. Smog and dust can do serious harm to our health, especially our
lungs.

We have thousands of asthma and adult respiratory distress cases each year which raise
concern

about the air quality. Moreover, acid rain is becoming more and more popular which
damages crops

and fields. Many people believe that air pollution is also causing global warming and it is
difficult to

improve the air without the efforts of all countries around the world.

1. According to the passage, where do a large amount of dust and poisonous air come from?

___________________________________________________________________________
________

2. Do developing countries take the air treatment process into careful consideration?

___________________________________________________________________________
________

3. Why is it difficult for us to breathe when travelling on the roads or streets?

___________________________________________________________________________
________

4. Which particular part of our body is seriously affected by smog and dust?

___________________________________________________________________________
________

5. What is the harmful effect of acid rain?

___________________________________________________________________________
________

6. According to the passage, if all countries in the world ignore the air pollution condition,
will it be easy to make the air fresher?

Exercise 15. Reorder the words to have correct sentences.

1. since/ years old. / she/ was/ She/ has learned/ English/ 12/
___________________________________________________________________________
_______

2. I/ working, / will/ When/I/ finish/ have dinner./

___________________________________________________________________________
_______

3. she/ the housework, / school/ will/ go/ to/ As soon as/ she/ finishes/

___________________________________________________________________________
_______

4. he/ Someone / a shower. / rang/ him/ when/ was taking/

___________________________________________________________________________
_______

5. she/ got/ pregnant, / working/ stopped/ After/ Mary/ hard. /

___________________________________________________________________________
_______

6. the beach/ will/ go/ to/ finish/ when/ their children/ The Browns/ studying. /

___________________________________________________________________________
_______

7. Just/ she/ came/ she/ went/ to/ the/ hospital. / as/ back/ to/ Australia, /

___________________________________________________________________________
_______

8. I / since/ have played/ old. / football/I/ was/ 7/ years/

___________________________________________________________________________
_______

9. when/ dinner/ she/ came. / We/ were having/

Exercise 16a. Read the situation, consequence and give solutions to each situation in our
country.

No. Situation Consequence Solution

1. Vietnamese people tend to use

private transportation.

Harmful gases released into

the environment.
______________________

______________________

______________________

______________________

2. In the summer, the demand

for air conditioners increases

sharply.

When used, air conditioners

will radiate hot heat into the

environment and warm the

Earth, destroying the ozone

layer

______________________

______________________

______________________

______________________

______________________

3. Many factories discharge

waste into the river to save on

waste treatment costs.

Affects people’s quality of life

and health.

______________________

______________________

______________________

______________________

4. People throw garbage

indiscriminately.
Pollution of land, water, air. ______________________

______________________

______________________

______________________