题目内容
－Is Pro．Smith giving the speech today?
－It _________ be him．He is abroad right now．
[ ]
A．
can’t
B．
needn’t
C．
won’t
D．
mustn’t
答案：A
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—Is Pro.Smith giving the speech today?
—It__________ be him. He is abroad right now.
| A．can’t | B．needn’t | C．won’t | D．mustn’t |