I slept with the window open 为什么用OPEN

I slept with the window open 为什么用OPEN ai night i often go to sleep with the window open 为什么用with 不 he slept better with all the windows open 为什么要用比较级better sleeping with the window(open)为什么填open不是opens,window不是可数码 shall i open the window .I sleep with the window open _____it's really cold. He is used to sleeping with the window open 为什么要用with _ I _ (open) the window?用一般将来时怎么填 Shall I leave the window open?) Shall I leave the window open? Shall I open the window?翻译下 Would you mind if I opened the window?中open为什么要用过去式?