问题
选择题
—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
答案
答案：A
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—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
答案：A