If you sit in a chair _____a long time, your back may begin to hurt.A.atB.inC.onD.for-九年级英语

题目简介

If you sit in a chair _____a long time, your back may begin to hurt.A.atB.inC.onD.for-九年级英语

题目详情

If you sit in a chair _____a long time, your back may begin to hurt.
A.atB.inC.onD.for
题型:单选题难度:中档来源:不详

答案

D
本题考查介词。介词for 用来引导一段时间。句意:如果你坐椅子很长时间,你的背部可能开始受伤。

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