Tom used to come and visit me a lot on his business trip between Hong kong and ____was then Beijing A, that B .which C. where D.what
So far all cloned animals have suffered from some different serious disorders, ______ dying soon after birth.
—The room is in a mess again! ——Sorry. It is ______ who ______.
——Why didn’t you call me this morning? ——I ______ call you. I called you all the morning, but I couldn’t ______.
When ______ by the teachers, a student tends to study harder than usual.
The result was far beyond ______ we had expected, ______ brought great joy to every one of us.