题目内容
-There is a lot of smoke coming out of the teaching-building there.
-Really?It ________ be a fire, most probably.
[ ]
A.can
B.ought to
C.have to
D.must
答案:B
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题目内容
-There is a lot of smoke coming out of the teaching-building there.
-Really?It ________ be a fire, most probably.
A.can
B.ought to
C.have to
D.must