一、 单项选择。1、Both his parents look sad . Maybe they _whats happened to him. A. knew B. have known C. must know D.will know2、He has _ been to Shanghai, has he ?A. already B.never C.ever D. still3、Have you met Mr Li _?A. just B. ago C.before D. a moment ago 4、The famous writer _ one new book in the past two year.A. is writing B.was writing C.wrote D.has written5、Our country _ a lot so far.Yes. I hope it will be ev
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