— I cannot find Tom anywhere. — He ________ have been off long. I heard him make a call just now.

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问题 — I cannot find Tom anywhere.
— He ________ have been off long. I heard him make a call just now.

选项 A、shouldn’t
B、can’t
C、mustn’t
D、needn’t

答案B

解析句意：——我在哪儿都找不到汤姆。——他一定没走多远，我刚才还听见他打电话了呢。本题考查情态动词与虚拟语气的用法。语境表示语气很肯定的否定判断推测：我刚才还听见他打电话了，因此他一定没走多远。用can’t have done，shouldn’t have done表示本不应该做某事；mustn’t have done表示禁止做某事：而needn’t have done指的是本来没必要做某事。

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本试题收录于：英语题库普高专升本分类