用动词的正确时态填空。1. He____ (study) at this school ten years ago.2. They ____  (watch)

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用动词的正确时态填空。1. He____ (study) at this school ten years ago.
2. They ____  (watch) TV at home since 8:00.
3. It"s 9:00 now. All the students ____ (have) an English class in the classroom.
4. — ____ you ____ (see) any movie recently?
    —Yes, I ____ (see) Harry PotterⅢ yesterday.
5. Our English teacher ____ (teach) English at this school for about 20 years.
6. Mary"s father likes ____ (climb) mountains, so climbing mountains is his hobby.
7. As drivers, they must ____ (obey) traffic rules.
8. She ____ (scream) when she saw a long snake.
9. We didn"t go home until we finished ____ (clean) the classroom.
10. Do you know how ____  (make) a vegetable salad?

答案

1. studied  2. have watched  3. are having  4. Have, seen, saw  5. has taught  
6. climbing  7. obey  8. screamed  9. cleaning  10. to make