when ,how soon用法区别
3个回答

when 副词

1.(用作疑问副词)什么时候,何时

I'd like to know when they'll let him out.

我想知道他们什么时候放他.

When did you last see Margaret?

你上一次见到玛格丽特是什么时候?

2.(用作关系副词,引导关系从句)当...时

There were times when I didn't know what to do.

有些时候我不知道该怎么办才好.

how soon 时间/期间〕多快

eg.How soon will you finish your homework

In about an hour.