【題目】The first thing __________ I did was to see if there were any products __________ might help me, but there only seemed to be powders __________ to kill snakes.

A. that; /; designed B. which; that; designed

C. /; that; designed D. /; which; design

【答案】C

【解析】句意:我做的第一件事是看看是否有能幫助我的產(chǎn)品,但似乎只有用來殺死蛇的粉末。the first thing后是定語從句,關(guān)系詞that在從句中可以省略；名詞product后是定語從句，關(guān)系詞可用that或 which,又因關(guān)系詞在從句中作主語，不能省略；動詞design 與名詞powders在邏輯上為被動關(guān)系,且動作已發(fā)生，故用過去分詞短語作后置定語。

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