-I saw Annie in the market yesterday．-You ________ her; she is still studying abroad．A.must’t seeB.couldn’t seeC.mustn’t have seenD.couldn’t have seen
网友回答
D解析本句考查情态动词用法，依据下文“she is still studying abroad．”可知你昨天不可能看到Annie．could have done表示对过去发生的事情的一种推测。所以D项正确。