1.he must remain in bed for another two days

题目

1.he must remain in bed for another two days
2.but you must keep the room warm
这2句中的keep与remain能互换吗?keep与remain区别有什么区别?

答案

不能,因为KEEP后常加宾语再加补足语,即加名词（宾语）再加形容词（补足语）或KEEP加表状态的动名词,1中的‘IN BED’是介词短语,所以不能换