Which question word to use?

该用哪个疑问代词？

Duoshao is a question word.

王渊源：“多少”是一个疑问代词。

Not so good, because it repeats the question word-for-word.

这样不好，因为一字字的重复了该问题。

Here are two important points: DON'T repeat the question word-for-word.

有两个要点：不要一字字的重复问题。

Go to every question, identify the main question word. What? Who? When? Where? etcetera, all these words, find out exactly what you are listening for.

浏览一下每个问题，找到每个问题的关键词，比如What、 Who、 When、 Where等等，找到这些词你们就知道自己究竟要注意听些什么。

If you want to ask about something specifically you can use the question word Which . . .? / Which . . . ? e.g.

如果你想问某事的具体情况，你可以用疑问词Which . / 哪个(种) .