let us go to the library.怎么变同意句?怎么变同意句啊?用什么疑问词呢?———— ———— （填什么?） go to the library?

let us go to the library.怎么变同意句?
怎么变同意句啊?
用什么疑问词呢?
———— ———— （填什么?） go to the library?

Shall we

Let's go to the library= Why not go to the library ?
= What/ How about going to the library ?

祝你学习进步，更上一层楼！ (*^__^*)
不明白的再问哟，请及时采纳，多谢！

应该填”shall we"

填Why not