Question

【題目】—Must I clean my room this evening, Mum?

—No, you _________clean it today. You can do it tomorrow.

A.mustn'tB.needn'tC.can'tD.shouldn't

Answer 1

【答案】B

【解析】

句意：—媽媽，今天晚上我必須打掃房間嗎？ —不，你今天不必打掃。你可以明天做。
考查must表必須的否定回答。mustn't一定不要，禁止；needn't沒必要；can't不能；shouldn't不應該。根據文中的句子you can do it tomorrow.可知今天不比打掃。needn't（沒必要）符合題意。故選B。