—How about singing songs with me?—I’m sorry I can’t. I help my father with his work. A. have to B. can C. may
We knew little about Shu-How Lin, a basketball player from New York Knicks, _______ we watched the basketball matches in NBA. A. until B. if C. so D. because
—Shall I tell you about it? —No, you _______. Sandy has told me already.
The math problem is _______ difficult and _______ of them can work it out.
_______ of the students in our class _______ interested in micro blogs (微博) on the Internet.
_______ great fun it is to play games on _______ QQ!