（ ）——Where is Jack?——I think he is still in _____ bed.A./ B.the C.a D.an

（ ）——Where is Jack?——I think he is still in _____ bed.A./ B.the C.a D.an
（ ）——Where is Jack?——I think he is still in _____ bed.A./ B.the C.a D.an

（ ）——Where is Jack?——I think he is still in _____ bed.A./ B.the C.a D.an
A
in bed 在床上
请及时采纳,多谢!

A./
in bed

选A。in bed 指躺在床上（盖着被子），如：She lay in bed.她躺在床上（盖着被子）。 on the bed 指躺在床上（未盖被子），如：She lad in the bed.她躺在床上（未盖被子）。