变被动语态 The policeman saw a thief rush into the bank还有2个Must I do all the exercisesNobody can carry the box
问题描述：
变被动语态 The policeman saw a thief rush into the bank
还有
2个
Must I do all the exercises
Nobody can carry the box
答
1\A thief was seen rush into the bank by the policeman.
后面两个要改成被动么？会很别扭的，不符合常理啊
答
答案应该是：A thief was seen to rush into the bank by the policeman .
答
A thief was seen rushing into the bank by the policeman.
Shall all the exercise be done by me?
The box can't be carried by anybody.