I listened to Dr.Wilson’s lecture about the protection of wild animals,but I was unable to grasp its key _________.
---How far apart do they live? ---________ I know ,they live in the same neighborhood.
I can’t find Mr. Smith .Where did you meet him this morning? It was in the hotel ___ he stayed. A. that B which C. the one D. where
____ that silver is not widely used as a conductor?
It was ___ he said ___ disappointed me.
It was ___she was about to go out ___the telephone rang.