Becauseoftoomanydifferencesbetweenthetwosides,alotofquestionsare

发布时间：2020-08-14 00:54:10

Because of too many differences between the two sides,  a lot of questions are still left ________A.in the airB.on the airC.by the airD.through the air

网友回答

A解析本题考查词组搭配。In the air 意思是“（计划等）未决定的”；on the air 意思是“在广播中”；C、D不正确。根据句意“很多问题还未解决”，故A正确。
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