---Thereisalotofsmokecomingoutoftheteaching-buildingthere.---Really?It_

发布时间:2020-08-04 23:01:29

---There is a lot of smoke ing out of the teaching-building there.---Really?It ________ be a fire, most probably.A.canB.ought toC.have toD.must

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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。
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