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

答案：登入後查看
統計： A(358), B(1824), C(138), D(72), E(0) #1612904

詳解 (共 4 筆)

#2302479
2.must + have + p.p....
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#3022846

must have p.p. 則是 ”(當時/之前) 一定是...” 的意思

ought to 後面用 have ＋ p.p.，表示「應該做，可是沒做」

I knew I ought to have written to him. 
我知道我是應該給他寫信的（可是我沒寫） 

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#2301985
Raymond seems to kno...
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#4222527

助動詞＋have+pp

表示現在對過去的事表達後悔、推測

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私人筆記 (共 1 筆)

私人筆記#5681337
未解鎖
mustmodal verbUKstro...
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