【題目】 — ______ do you know so much about the UFO?

— I usually get the information by _______ the Internet.

A. How; surfing B. What ; surf

C. Which; surf D. Where; surfing

【答案】A

【解析】

試題分析：How如何，怎樣；What什么；Which哪一個；Where在哪兒。根據(jù)下文，我通常通過上網(wǎng)來獲得信息。可知上文問的是，關(guān)于飛碟，你是如何知道這么多的？介詞by后面要跟動詞的ing形式，故選A。

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