how后面加什么动词什么形

　　Now let me see ─ how old is she now?

　　让我想一想，她现在多大了呢？

　　How much will it cost, more or less?

　　这个大概得花多少钱？

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

　　真想不到你怎么会说出这种话来。

　　How many people were there?

　　有多少人？

　　In this class, students will learn how to program.

　　这节课学生将学习编程。