【題目】—Excuse me. Have you got an crascr?

—Sorry, I haven't. Why _____ you ask Mary?

A. not B. don't C. won't D. didn't

【答案】B

【解析】句意：——打擾一下，你有橡皮嗎？——對不起，我沒有。你為什么不問問瑪麗呢？Why don’t you---?你為什么不做某事呢？故選B

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