What shall we do this weelend _________go to the park?A.Why not B.Why don't we C.Shall we要怎样选
问题描述：
What shall we do this weelend _________go to the park?A.Why not B.Why don't we C.Shall we
要怎样选
答
why not...后接动词，其意为“你为什么不……呢”，它主要用于提出建议，因此通常只能用于现在或将来，而不能用于过去。如:
你昨天为什么不打扫房间?
误：Why not clean the room yesterday?
正：Why didn’t you clean the room yesterday?
答
Why not