let's 反问用shall we ,let us 用will you

let's 反问用shall we ,let us 用will you let’s play chess,shall we?为什么用shall we问? Let's go into the post office.shall we?为什么要用shall we Let's forget it,shall we. Let's forget it,shall we. let's ()(start) our lesson ,shall we Let's decide( )and( )we shall meet Let's play volleyball,shall we/will you/do you?应该用shall worry about let's make friends shall we worry about let's make friends shall we let's和let us哪个用will you哪个用shall we? Let's have a rest shall we?为什么用Sall we l can't find( )basketball.( )is it?Look.( )under the desk.Shall we play basketball now?OK .Let's( 英语语法问题：let's后反义疑问句用shall we.那么let's not后呢?举个例子! 英语语法问题：let's后反义疑问句用shall we.那么let's not后呢?举个例子!谢谢! ---Shall we dance?---yes,_____A.we'll danceB.let us doC.we danceD.let's dance let 's go (camp) together ,shall we?用所给词的适当形式填空 Let's have a picnic,shall we?Yes,_____. 英语翻译Let's go to the park,shall we?