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【題目】 —______________ do you exercise?

—Three times a week.

A. How long B. How far C. How often D. How much

【答案】C

【解析】考查特殊疑問詞。句意：——你多久進行一次鍛煉？——一周三次。A. 多長；B. 多遠；C. 多久一次；D. 多少錢。結合句意可知選C。

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