We stay at home days中的days是什么用法?

We stay at home days中的days是什么用法? stay for 3days at home He will stay at home __two days we have to stay at home We had better_____(stay)at home. stay for 3days at home 正确吗,还是 rest for 3days at home We usually stay at home at the w_______ We have to stay at home because we hane too mnch homework.We have to stay at home ___ ___ It's raining outside so we( )stay at home stay,on,home,at,we,Saturdays连词成句 stay,on,home,at,we,Saturdays(连词成句） We stay at home better.如果是,为什么?怎么改? It____hard outside.We have to stay at home(rain)Why? We'better stay at home since it_____(rain) heavily outside. It ____(rain)outside.We should stay at home. F_____ we decided to stay at home(英语) _________（suppose）it rains,we will stay at home. we just stay at home ,its very b_____