The rubbish _____ is produced every day is becoming a serious problem in cities around the world.
A. that B. who C. where D. whom
More and more trees were cut down. _____, many animals are dying out.
A. In the end B. So that
C. As a result D. At last
We should often keep _____ touch with each other, because we are good friends.
A. on B. to C. in D. up
—What do you think this coat is made _____?
—Wool. It’s used for _____.
A. of, keeping warm B. from, keeping warm
C. in, keeping warmly D. of, keeping warmly
—Do you know _____?
—Sorry, I don’t know.
A. what’s the population of Japan
B. what the population of France is
C. how much of the population of Japan is
D. how many is the population of France
_____ the morning of December 1st, 2006, the 15th Asia Games _____ in Doha(多哈).
A. In, held B. On, was held
C. At, held D. For, were held
