By the time the fire-engine arrived, the fire by the inhabitants.
Diligence is ______ it takes for the post-90's generation to win competitions.
With a lot of work ______, she weren't allowed to leave her office.
----Why didn’t you see me wave to you then? ----Oh, If so. I must say sorry. I think I____ in the other direction.
---Which one will I choose? ---Well, you can take _______ of them; I’ll keep none.
It’s ______ that the boy break away from the bad habit of sleeping at class.