-There is a lot of smoke coming out of the teaching-building there． -Really?It b
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－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
试题答案
答案：B
解析：can不能在肯定句中表示推测；have to意为“不得不”，不符合句意；ought to意为“应该”，本句意为“应该是火灾吧”；must表示“一定是”，与most probably矛盾。 |