用所给动词的适当形式填空1. He English for 8 years.2.I'm so tired, I for eight hours without

用所给动词的适当形式填空
1. He _____(learn) English for 8 years.
2.I'm so tired, I  ____ ( drive) for eight hours without a rest.
3. You _____ ( do)  the report since six o'clock. Let's have a rest.
4. We ____ ( write)  English for two hours.
5. Your mother ____(look) for you all the morning.
6. Helen  _____    ( leave) her keys in the office,so she had to wait
    until her husband _____( come) home.
7. I ____( hope) to meet Mr. Thompson this morning,but I found nobody left in the room.
8. We plan to reach the North Pole in mid-July,and by then we _____  ( walk)  for six weeks.
9. By the time you arrive in New York,you will ____  ( away) for  two weeks.
10. -Did you find the missing couple in the mountain yesterday?
      -No,but we  ____( try) to get in touch with them ever since.

试题答案

1. has been learning   2. have been driving   3. have been doing 4. have been writing 
5. has been looking   6. had left;came 7. had hoped   8. will have walked  
9. have been away10. have been trying