题目内容
My cell-phone has disappeared. Who have taken it away?
A、could B、should C、must D、might
【答案】
A
【解析】考查情态动词。句意:我的cellphone不见了,会是谁把它拿走了呢?此处could have done表示“可能做过某事”。should have done表示“本来应该做某事(但实际上并没有做)”;must have done表示“一定做了某事”;might have done表示“也许做了某事”。
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