【題目】I think QQ is an invention ________ can help us communicate with others on line freely.

A.whatB.whichC.whoseD.who

【答案】B

【解析】

句意:我認為QQ是一項可以幫助我們與他人在網(wǎng)上自由交流的發(fā)明。

考查定語從句。what可引導名詞性從句;which可引導定語從句,指物,作主語/賓語;whose可引導定語從句,指人/物,作定語;who可引導定語從句,指人,作主語/賓語。分析句子可知,此處是定語從句,先行詞是“invention”指物,引導詞用于句中作主語。故選B

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