why she --?she is ill.A i n the bed B on the bed C in bed D on bed

问题描述:

why she --?she is ill.A i n the bed B on the bed C in bed D on bed

C
她为什么卧床了?她病了.
in bed 习惯用法,表示卧床
有一些习惯用法,介词+名词,而不需要冠词,表示一种状态.比如:
in bed 卧床
in * 蹲*
in hospital 住院