Whether the buildings in this area should be pulled down has remained ____；people are still looking for other possible solutions.
A. unchallenged B. relevant
C. controversial D. contradictory
I________through that bitter period without your generous help.
A. couldn't have gone B. didn't go
C. wouldn't go D. hadn't gone
—I wonder ________ Mary has kept her figure after all these years.
—By working out every day.
A. where B. how
C. why D. if
The Australian boy has a good ________of Chinese and can communicate with others freely.
A. request B. command
C. demand D. usage
People's ________ for bicycles may reflect public dissatisfaction with bus service.
A. insistence B. preference
C. confidence D. reference
The librarians ________ the books in the library as novels，which are popular with us.
A. suppose B. classify
C. look D. insist
