If you sit in a chair _____ a long time, your back may begin to hurt. [ ]A. at B. in C. on D. for -九

题目简介

If you sit in a chair _____ a long time, your back may begin to hurt. [ ]A. at B. in C. on D. for -九

题目详情

If you sit in a chair _____ a long time, your back may begin to hurt.

[     ]

A. at
B. in
C. on
D. for
题型:单选题难度:中档来源:山东省中考真题

答案

D

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