题目内容

用动词的适当形式填空。
1. While we _________ (wait) for the bus, a girl _________ (run) up to us.
2. I _________ (telephone) a friend when Bob _________ (come) in.
3. Jim _________ (jump) on the bus as it _________ (move) away.
4. We _________ (test) the new machine when the electricity _________ (go) off.
5. She _________ (not want) to stay in bed while the others _________ (all, work) in the fields.
6. While mother ________ (put) Cathy to bed, the door bell ________ (ring).
7. As I _________ (walk) in the park, it _________ (begin) to rain.
8. Even when she _________ (be) a child she _________ (already, think) of becoming a ballerina
    (芭蕾舞演员).
9. It was quite late at night. George _________ (read) and Amy _________ (play) her needle when
    they _________ (hear) a knock at the door.
10. There _________ (be) a group round the fire when they _________ (reach) it. An old woman
       _________ (sit) on the ground near the kettle; two small children _________ (lie) near her; a 
      donkey _________ (bend) his head over a tall girl.
1. were waiting; ran  2. was telephoning; came  3. jumped; was moving  4. was testing; went
5. didn't want; were all working  6. was putting; rang  7. was walking; began  8. was; was already thinking
9. was reading; was plying; heard  10. was; reached; was sitting; were lying; was bending
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