how後面加什麼動詞什麼形

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.

真想不到你怎麼會說出這種話來。

How many people were there?

有多少人？

In this class, students will learn how to program.

這節課學生將學習編程。