whynot后面加什么词

　　Why not have a day off? I'll hold the fort for you.

　　干吗不休息一天？我来为你代管。

　　Why not tell her you're quitting and have done with it?

　　为什么不告诉她你打算辞职，尽快把这件事了结了呢？

　　If you are selling your property, why not call us for a free valuation without obligation.

　　如果你打算出售房产，为什么不打电话让我们做个免费的评估呢。

　　Why not make one by ourselves?

　　为什么不自己做一个呢？