问题描述：
将下列主动语态的句子变成被动语态
1,The teacher gave him his advice.
2,I saw the boy run yesterday.
3,The workers are repairing the bridge.
4,People have seen the wolf in this village.
5,We must keep our room clean are tidy.
6,You can play with these lovely dogs.
7,They threw away the old map yesterday.
8,I think that he is right.
9,He told me that he would come back soon.
1,The teacher gave him his advice.
2,I saw the boy run yesterday.
3,The workers are repairing the bridge.
4,People have seen the wolf in this village.
5,We must keep our room clean are tidy.
6,You can play with these lovely dogs.
7,They threw away the old map yesterday.
8,I think that he is right.
9,He told me that he would come back soon.
问题解答：
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