问题描述：
1.Have you___(see)Jack?
2.They were___(listen)to the radio.
3.He says he___already___(repair)the car.
4.The teacher___(leave)his book on the desk yesterday.
5.Look!The boy___(wave)to you!
6.I___(do)my homework when the telephone rang.
2.They were___(listen)to the radio.
3.He says he___already___(repair)the car.
4.The teacher___(leave)his book on the desk yesterday.
5.Look!The boy___(wave)to you!
6.I___(do)my homework when the telephone rang.
问题解答：
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