問題詳情
27. A: I saw Shannon having a drink with Tom at a pub lastnight.B: The girl you saw ______ Shannon. She was staying at mydorm last night.
(A) could not be
(B) might not be
(C) could not have been
(D) must not have been
參考答案
答案：C
難度：困難0.385321
統計：A(27),B(15),C(42),D(17),E(0)
用户評論
【darren45678】評論
表達對於過去的推測用語態助動詞的過去式，所以A跟B可以先刪掉，則選C是因為在否定的程度上could not have比must not have 更強烈。你見到的那位女孩所"幾乎可以確定是絕對不可能"是Shannon。 希望有幫到妳學姊:)