第一题,有have证明是现在完成时,所以用see的过去分词,即填seen
第二题,there be 接一般进行时 表现在的状态,他们在听收音机,所以是listening
第三题says后面是接间接引语,由于主句是一般现在是,所以后面填has repaired
4.由于有明确的过去的时间,yesterday,所以是一般过去时,填left
5,。因为 是look 表示现在,所以是waving
6.was doing 我正在写作业正在这时电话响了
希望对你有帮助
求采纳~
1.seen
2.listening
3.has repaired
4.left
5.is waving
6.was doing
祝你开心。
1.Have you_seen__(see)Jack?
2.They were_listening__(listen)to the radio.
3.He says he_has__already_repaired__(repair)the car.
4.The teacher__left_(leave)his book on the desk yesterday.
5.Look!The boy_is waving__(wave)to you!
6.I_was doing__(do)my homework when the telephone rang.
seen listening have.repaired left are.waving have.done
seen listening has repaired left is waving was doing