how为连接副词，引导名词性从句，后动词可为一般现在时：动词单数形一般过去时：动词过去式还可接情态动词.
扩展资料
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.
