i stay in bed 为什么用in 不用 on at at不是指小地方吗

i stay in bed 为什么用in 不用 on at at不是指小地方吗 I sometimes stay in bed until I sometimes stay in bed until lunchtime?为什么in 后面不加the bed 最好能细说 the的用法 stay in bed During my stay in bed和during i stay in bed有什么不同 哪个对 during my stay in bed 为什么用my,stay为什么用原型 my stay in bed 为什么用my,stay为什么用原型 I sometimes stay in bed until lunchtime.为什么sometime要加s I sometimes stay in bed until lunchtime中,为什么在sometime+s呢? i sometime __(still/stay) in bed __(on/until) luntchtime.选择哪一个?为什么? stay in bed还是stay in zhe bed? stay in bed 和stay in the bed的区别 stay in bed 和stay in the bed stay in bed怎么翻译 stay in bed today是什么意思? stay in bed 汉语是什么 must stay in bed可以说成stay 用call,stay,the,just,in,and,doctor,I`ll,bed连句 stay in bed 和stay in the bed 有什么不同?可以是stay on bed