No wonder you caught a cold. You________have gone out last night without a coat.
A.shouldn’tB.mustn’t
C.couldn’tD.mightn’t
A
考查虛擬語氣。句意:怪不得你會感冒。你昨晚不該沒穿外套就出去!皊houldn’t+have+done”表示本來不應(yīng)該做某事,而實際做了;“mustn’t +have+done”表示對過去事情的否定推測,譯成“一定沒有做過某事”; “couldn’t +have+done”表示對過去事情的假設(shè),意思是本來不能夠做某事而做了;“mightn’t +have+done”表示對過去已經(jīng)發(fā)生的事情的推測,might與may意思相同,但可能性更小。結(jié)合語境可知選A。
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