13. He ______ have completed his work； otherwise, he wouldn’t be enjoying himself by the seaside.(A)

問題詳情

13. He ______ have completed his work； otherwise, he wouldn’t be enjoying himself by the seaside.
(A) should
(B) must
(C) wouldn’t
(D) can’t

參考答案

答案：B
難度：適中0.6
書單：沒有書單，新增

用户評論

【允祁】評論

must + 原形動詞通常用在對現在事實的推測，而must have + 過去分詞則是用在對過去事實的推測

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