【題目】They wonder________ robots will make humans lose their jobs or not.

A. that B. if C. whether

【答案】C

【解析】試題分析:that那個,引導(dǎo)賓語從句不做句子成分,只起引導(dǎo)作用;if是否,如果;whether是否。句意:我想知道機(jī)器人是否會讓人們失去他們的工作。在表示是否時,whether常和or not搭配使用,故選C

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