主动变被动
1 his parents didn't bring up him
2 the train had left when he got there
3 my mother let me buy some vegetable
4 lucy is watching tv now
5 the story that he told makes us laugh
6 you must do the homework yourself
7 we have picked the apples hong tree
8 the scientist will invent a kind of new medcine to help people
9 i thought about the question again and again
參考答案:his parents didn't bring up him
他的父母没有培养他(把他养大)
和he was not brought up by his parents
2 the train had left when he got there
当他到那里的时候,火车已经开走了
the train was driven away when He got there
3 my mother let me buy some vegetable
我妈妈让我买些蔬菜
I was asked to buy vegetables by my mother
4 lucy is watching tv now
鲁西正在看电视
The Tv is watched by Lucy
5 the story that he told makes us laugh
他告诉(更我讲)的故事让我大笑起来
I was made laugh by the story he told me
6 you must do the homework yourself
你应该自己做作业
your homework must be done by yourself
7 we have picked the apples hong tree
我门已经摘了苹果(hong tree 不知道为什么意思,你自己再看看0
the apples hong thre have been picked by us
8 the scientist will invent a kind of new medcine to help people
科学家将发明一种新的机器来帮助人(类)
a kind of new machine will be invented by scientist to help people
9 i thought about the question again and again
我把这个问题想了一遍又一遍
the question was thought by me again and again