how long 和how soon 有什么区别?如：will they finish the work?In ten years.

Question

how long 和how soon 有什么区别?如：will they finish the work?In ten years.

Answer 1

1.How long 多长时间,常对一段时间提问.例如：
I have lived here for ten years.(对 for ten years 提问)
----How long have you lived here?
2.How soon 多久,常对in +一段时间 提问,表示将来,例如：
His father will come back in three day.(对in three days 提问)
-----How soon will your father come back?
你所给的句子应该用 How soon 提问.
How soon will they finish the work?