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A. I haven’t sat down all day.B. You（）be very tire
A. I haven’t sat down all day.B. You（）be very tire
A.could
B.have to
C.must
正确答案：C
上一条：
A. Thank you for lending me your dictionary.B. You’re welcome.But could you（）to me tomorrow？
下一条：
A. I haven’t eaten all day.B. You（）be very hungry.