問題詳情

66. Raymond seems to know all the answers to the questions. He _____ have studied his lessons very hard last night.
(A) should
(B) must
(C) would
(D) ought

參考答案

答案:B
難度:簡單0.72886
統計:A(177),B(793),C(79),D(39),E(0)

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