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【題目】—I really like eating potato chips.Do you know ________they were invented?

—Actually,they were invented by mistake.

A.whyB.whenC.howD.whether

【答案】C

【解析】

句意:——我真的很喜歡吃薯片。你知道它們是怎么被發明出來的嗎?——事實上,它們是被錯誤地發明出來的。

本題考查賓語從句。why為什么,when什么時候,how如何,whether是否。根據they were invented by mistake.可知,此處詢問它們是如何被發明的。故選C。

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