how作為感嘆句的時候后面加什么

　　We need to evaluate how well the policy is working.

　　我們需要對這一政策產生的效果作出評價。

　　I'll show you how to load the software.

　　我給你演示一下如何裝入這套軟件。

　　Now let me see ─ how old is she now?

　　讓我想一想，她現在多大了呢？

　　How much will it cost, more or less?

　　這個大概得花多少錢？

　　I don't know how you can say things like that.

　　真想不到你怎么會說出這種話來。