How about some ice cream?
来点冰淇淋如何?
That's a good idea.
那是个好主意。
That sounds good.
听起来不错。
Why don't you take a rest?
你何不休息一下?
Why not give it a try?
你何不试试?
Why don't you have a look?
你何不看看?
Why not check out the newspaper?
你何不查一下报纸?
Could you check out the newspaper?
你可以看看报纸有没有吗?
You'd better see what is on.
你最好先看看有什么(电影)上演。