1 The man s() to be a policeman.
2 I don't know how I can swim well.(同义句转换)
I don't know (how) (to) (swim) well.
3 He works hard at English,she works hard at English,too.(同义句转换)
He works hard at English,(so) (does) she.
4 Don't (make) (faces)(做鬼脸) in your class.