tom'father is ill.he is in bed 还是on bed 或是in the bed抑或是at bed?
问题描述：
tom'father is ill.he is in bed 还是on bed 或是in the bed抑或是at bed?
答
Tom's father is ill.He is in bed.
in bed 生病在床
on the bed 在床上面
in the bed 睡着了,或者是躺在床上,特别是在床上呆了一阵子了
at bed 没有这种用法