—Mum,I’mgoingclimbing.MustIcleantheroomnow?—No,you

問題詳情：

—Mum, I’m going climbing. Must I clean the room now?

—No, you_____________. You can do it this evening.

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

【回答】

C

知識點：情態動詞

題型：選擇題