Mary has a bad cold,She has to stay in___bed.A.a B./C.the D.an应该选哪一个?为什么
问题描述：
Mary has a bad cold,She has to stay in___bed.A.a B./C.the D.an应该选哪一个?为什么
答
B:/ in bed 表示有病卧床不起，固定搭配
答
选B stay in bed :在床上躺着别动,一般用于一些老弱病残者,让他们少动,那样
比较舒服点.