---Did Jack come back early last night?---Yes, it was at eight o’clock_____ he arrived home.
I admired my classmate Lisa very much.___ her prettiness, she was smart and helpful.
_____ we can see, we can’t get very far in this project without her help.
Try ____ she might, Sue couldn’t get the door open.
More than one company ___ the new design to market only to see it quickly denied by those who couldn’t wear them.
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