【題目】 You have spent too much time playing computer games. That’s ________ your eyes hurt.

A. why B. how C. what D. when

【答案】A

【解析】考查表語從句引導(dǎo)詞的辨析。句意：你已經(jīng)花費(fèi)了太多的時間玩電子游戲，這就是你眼睛疼的原因。That’s why...意為＂這就是……的原因＂。故選A。

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