IV. Read and complete with the correct form of the verbs

Rainforests help control the world’s climate, but they are disappearing fast. If they (1. disappear) ______________, the climate (2. Change)_______________. If we (3.continue)_______________to cut down trees, the climate (4.become)_______________ much drier. Droughts (5 be)____________more common if we (6. Destroy)_______________ the forests. Rainforests change carbon dioxide into oxygen. We (7. Not have)___________________ enough oxygen to live if the forests (8. Disappear) ________________. Millions of animals and plants (9. Lose)_________________ their habitats if we (10. Don’t save)___________________ the rainforsts!

1. Jane  (write) a letter to a magazine. She (not finish) it yet. 
2. Ben  (look) for his penknife, but he  (not find) it yet. 
3. Jenny (wait) for the bus for half an hour, but it  (not arrive) yet. 
4. Nick  (play) a computer game for two hours and he is still playing. 
5. Mike  (not finished) painting his car yet. He  (work) on it for two weeks. 
6. Amanda  (not come) home yet. She  (shop) in town since 10 o'clock. 
7. Mike's car  (make) strange noises. Nick and Jane  (clean) all the parts

1.  John ever  (win) a prize at a race? 
2. I  (fall) asleep yesterday when I  (watch) TV. 
3. George  never  (be) to Canada. 
4. Tom is not back in England. He  (be) in Italy for three weeks. 
5. We  (do) a lot last Sunday. 
6. I sometimes  (go) to the cinema. 
7. Nick  (work) hard yesterday.  
8. I  (not find) my ring yet which I  (lose) at the party yesterday. 
9. They (build) this castle in 1762. 
10. Would you like to have something to eat? No, thank you. I (just have) dinner. 
11. While Tom  (play) tennis, Ann  (take) a shower. 
12. I  not  (see) his dog since yesterday morning. 
13. Mike  (play) on his notebook now. How long  he  (play)? 
14. "you  (speak) English?" she was asked. 
15. When they  (work) in the garden, the phone (ring). 

8. In some rural areas, it’s difficult to find __________ in a house. A. electrify appliances B. electrical appliances C. electricity appliances D. electrician appliances 9. The villagers’ __________ saved the travellers from starving. A. generosity B. generousity C. generosy D. generousness 10. Do not __________! They are doing a very important project. A. disturb B. annoy C. play D. make fun 11. People living a __________ life have to move a lot. A. moving B. stable C. nomadic D. commuting 12. __________ fruits on a farm is one of the most popular part-time jobs among students studying abroad. A. Picking B. Doing C. Making D. Finding 13. Children in the countryside are used to __________ cattle in the field. A. walking B. herding C. following D. rising 14. A/An ___________ area of that forest – about more than 1,000 hectares – was destroyed in the fire. A. vast B. tiny C. small D. inconsiderable 15. __________ kites is one of the most popular outdoor activities among children in the countryside. A. Doing B. Singing C. Flying D. Using 

ai giỏi anh giúp mình với mình cần gấp

* Complete the second sentence so that it has similar meaning to the first one.
       29.  No cities in Viet Nam are more crowded than Ho Chi Minh City.
              Ho Chi Minh city is………………………………………………………………………………….
       30.  I last saw Jim five months ago.
              I haven’t……………………………………………………………………………………………..
       31. When did you start learning English?
             How long…………………………………………………………………………………………….
      *Make questions for the underlined words:
       32.   She went to the doctor’s because she was sick.
        ...............................................................................................................................................................
       33.   James has written 4 novels.
        ...............................................................................................................................................................
      * Reorder these words to make a correct sentence:
      34.    If/ plant/we/greener/trees/environment/will/more/be/our.
        ...............................................................................................................................................................
      35.    interested in / around / travelling / He / the world. / is /
        ...............................................................................................................................................................