—Obviously, the boss looks happy again, doesn’t he?
—Yes. It’s said that he has ______ the difficult problem.
A. succeeded in solve B. tried to solve
C. managed to solve D. been solved
A concert will be held in our city _____ the great musician.
A. in search of B. in charge of
C. in memory of D. in favour of
We must do whatever we can _____ the river _____ any more.
A. to keep; polluted B. to prevent; being polluted
C. keep; polluted D. prevent; being polluted
People who want to cross Canada in less than five days forget the fact _____ Canada is 5,500 kilometers from coast to coast.
A. whether B. that C. how D. why
As we all know, Asia is _____ Europe.
A. four times as large as B. bigger than four times
C. four times as much as D. four times the size as
_____ excited the whole nation most is _____ more than 100 workers who were trapped under the coal mine in north China have been rescued.
A. It; that B. That; whether
C. What; whether D. What; that
