---Wedidnotseehimatthelectureyesterday. ---You     him,...

問題詳情：

---We did not see him at the lecture yesterday.

  ---You      him, since I went to an international conference with him.

A. mustn’t have seen    B. can’t have seen

C. couldn’t see        D. needn’t have seen

【回答】

B

知識點：情態動詞

題型：選擇題