The train leaves at 6:00 p.m. So I have to be at the station ____5:40p.m.at the latest.
I'm not sure whether this is the room ________ she left her dictionary.
---Don't put the waste on the ground. ---Oh, I'm very sorry. I ________ the dustbin(垃圾箱) there.
By the time she ________ home, her parents will have prepared some delicious food for her.
---Whose advice do you think I should take? --- ________ .
We were pretty _____ when we learned the _______ fact that an elephant would come to live in our school.