ex1: Rewrite the following sentences without changing the meaning 

    1. they intend to make this bech a clean and beautiful place again .

   -> they plan ............................................................................

   4. If I don't leave now , I'll miss the train .

    -> Unless I have .......................................................................

 18. What is your favorite food ? -> I am .........................................

 19. When did you have it ?         -> How ..............................?

 20 . We began playing volleyball ten years ago .

    ->  We  have ...................................................................................

II. Rewrite the sentence so that its meaning stays the same.

1. They intend to make this beach a clean and beautiful place again.

       à They plant ..............................................

2. The students started to collect old clothes for their charity programme last week.

       à The students have .......................................

3. We make the air dirty because we use the car all the time.

       à If we use ...................................................

4. If I don’t leave now, I’ll miss my train.

       à Unless I leave ..........................................

5. I won’t be able to do anything unless I have a quiet room.

       à If I don’t have .................................................

II. Rewrite the sentence so that its meaning stays the same.

1. They intend to make this beach a clean and beautiful place again.

       They plant ..............................................

2. The students started to collect old clothes for their charity programme last week.

        The students have .......................................

3. We make the air dirty because we use the car all the time.

        If we use ...................................................

4. If I don’t leave now, I’ll miss my train.

        Unless I leave ..........................................

5. I won’t be able to do anything unless I have a quiet room.

       If I don’t have .................................................

Rewite the sentences:

1 They intend to make this beach a clean and beautiful place again

They plan..................................................................

2 They students started to collect ald clothes for their charity progrmame last week

The students have..................................................................................

3 We make the air dirty because we use the car all the time

If we use .............................................

4 If we don't leave now,I'll meet my traim

Unless i leave..........................................

III. Choose the word(s) OPPOSITE in meaning to the underlined words in each of the following questions.

1. If you work hard, we’ll make this beach a clean place again.

      A. beautiful                  B. tidy                                 C. polluted                          D. clear

2. You should use public buses instead of motorbike to reduce air pollution.

      A. increase                   B. decrease                         C. minimize                        D. make less

3. Polluted water is harmful to people’s health and kill fish.

      A. useful                       B. unsafe                             C. bad                                  D. dangerous

4. Everyone should protect our environment.

      A. conserve                  B. save                                C. destroy                           D. take care of

5. We should try our best to keep our environment unpolluted.

      A. clean                         B. safe                                 C. fresh                               D. polluted

IV. Find a mistake in the four underlined parts of each sentence and correct it.

1.If we keep on using more and more cars, we are running out of oil.

      A                              B                                    C                       D

2. We should reuse and recycling bottles and cans to reduce garbage.

    A                    B                     C                   D

3. People collect the broken glass and sending it to the factories.

                    A                 B                              C                          D

4. If there will be too much exhaust fume in the air, our breathing will be badly affected.

                      A                                     B                                        C                                 D

5. Reusable bags are good because they are made of the natural materials.

       A                 B                        C                     D