.Mr.Black didn't go to work yesterday because he was ill in________ bed.A.a B.an C.the D./

分类: 作业答案 • 2021-12-19 10:50:33

问题描述：

.Mr.Black didn't go to work yesterday because he was ill in________ bed.
A.a B.an C.the D./

答

选择D
be ill in bed是一个固定词组,意思是：卧病在床