【題目】–_____ did you work out the problem in such a short time? --With Mr. Li’s help.

A. When B. Where C. How D. Which

【答案】C

【解析】

試題分析：句意：-你是怎樣在這么短的時間內(nèi)做出這個問題的？-是在李老師的幫助下。When 什么時候；Where 在哪里；How 怎樣；Which哪一個。根據(jù)對話下面的回答With Mr. Li’s help可知，這里問的是怎樣做出題的，故應(yīng)選C。

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