21.—Would you like to watch the movie with me tonight?
— ，but I have too much homework to do.
A．I’d love to B．That’s all right C．It doesn’t matter D．Not at all
22. In 1636, Harvard（哈佛大学）is one of the most famous universities in the United States.
A. Being founded B.It was founded C.Founded D.Founding
23. Not a single song at yesterday’s party.
A.he sang B. sang he C. did he sing D.she did sing
