During our stay in London, the guide book ___ a great help. We all had a wonderful time.A. behaved B conducted C. served D. proved
______ 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.
It is _____ he often fails in exams _____ makes his parents worried about him.