---Couldyoupleasecometothemuseumwithmethisafternoon?---...

問題詳情：

---Could you please come to the museum with me this afternoon?

---Sorry, I ______ . I have to take a piano lesson at 2 pm.

A. couldn’t         B. mustn’t          C. can’t        D. needn’t

【回答】

C

知識點：情態動詞

題型：選擇題