Someone knocked at your door just now,but I didn’t see who was.
If you______to her about it yesterday, you ______ what to do now.
______ no bus, we had to take a taxi to go to the station.
I don’t think the color of the curtains ______ the color of your room perfectly.
It was______ back home after the experiment.
______ I have made great progress in my spoken English, I can not express myself freely.