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Whenyouleave,pleaseturnoffthelight

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問題詳情：

Whenyouleave,pleaseturnoffthelight

When you leave, please turn off the light_____ energy.

A. save B. saving C. saved D. to save

【回答】

D【解析】此題考察非謂語動詞用法，注意原句中有謂語動詞“please turn off ”，所以空中不能再填動詞原形，根據句意“當你離開時，關燈以便省能源”我們發現此處表示目的，故不定式表目的。

知識點：非謂語動詞

題型：選擇題

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