CHOOSE THE WORD OR PHRASE ( A, B, C, OR D ) THAT BEST FITS THE BLANK IN THE FOLLOWING PASSAGE

Exercise 10 : Choose the word or phrase ( A, B, C, or D ) that best fits the blank in the following

passage.

We are using up the world’s petrolium. We use (1)….. in our cars and to heat our buildings in winter.

Farmers use petrochemicals to (2)…… the soil rich. They use them to kill insects (3)….. plants.

These chemicals go (4)…… rivers and lakes and kill the fish there. Thousands of pollutants also go into

the air and pollute it. Winds carry this (5)….. air to other countries and other continents.

Poor farmers use the same land over and (6)……. . The land needs a rest so it will be better next year.

However, the farmers must have food this year. Poor people cut down forests (7)….. firewood. In some

areas when the trees are gone, the land (8)…… desert. Poor people can’t save the environment for the (9)

……. . This is not a problem for one country or one area of the world. It is a problem for all humans. The

people and the nations of the world must work together to (10)…… the world’s resources.

1. A. it B. them C. that D. those

2. A. enrich B. change C. make D. let

3. A. eat B. eaten C. eating D. ate

4. A. to B. toward C. at D. into

5. A. pollute B. polluting C. polluted D. pollution

6. A. over B. again C. repeated D. repeating

7. A. of B. for C. with D. at

8. A. gets B. changes C. turns D. becomes

9. A. future B. time C. times D. period

10. A. recycle B. preserve C. keep D. use

Date of preparation : 03 / 04 /09

A. Theory

The general formation : Active : S + V + O

Passive : S + tobe + P2 + by …

1. Passive voice with simple present.

Active : S + V / Vs/es + O

Passive : S + is / are / am + P2 + by ….

2. Passive voice with present progressive.

Active : S + is /are / am + V- ing + O

Passive : S + is / are / am + being + P2 + by …

3. Passive voice with present perfect.

Active : S + have / has + P2 + O

Passive : S + have / has + been + P2 + by ….

4. Passive voice with simple past.

Active : S + Ved / V- irregular + O

Passive : S + was / were + P2 + by …..

5. Passive voice with past progressive.

Active : S + was / were + V- ing + O

Passive : S + was / were + being + P2 + by ….

6. Passive voice with past perfect.

Active : S + had + P2 + O

Passive : S + had + been + P2 + by …

7. Passive voice with simple future.

Active : S + will / shall / can / may … + V + O

Passive : S + will / shall / can / may … + be + P2 + by …

8. Passive voice with “tobe going to”

Active : S + is / are / am + going to + V- bare infinitive + O

Passive : S + is / are / am + going to be + P2 + by ….

9. Passive voice with Modal verbs.

Active : S + modal verb + V- bare infinitive + O

Passive : S + modal verb + be + P2 + by …

B. Exercises