If you compare British English American English, you’ll find difference.

I wonder _____ he will come before 9:00 p.m..

He likes playing tricks on others, but ________ , he is a good boy because he is willing to help others.

You were not in when I came over to your house-Oh, I ____________ for a friend from England at the airport

下列各句加点的成语使用有误的一项是（ ）