—The meeting _______ because of the fog in Northern China last week.
— Oh, it’s too bad! We should take action to improve the air quality.
A.put out B. was put out
C. put off D. was put off.
— I wonder if I can learn English well.
— _______. All things are difficult before they are easy.
A. I am afraid so B. You’re slow
C. It takes time D. It’s a piece of cake
— I missed the beginning of The Voice of China yesterday evening.
—_________! But you can watch the re-play tonight.
A.Hurry up B. What a pity
C. Try your best D. It serves you right
What method can you think of _________ with these broken computers?
A. to deal B. dealing C. deals D. Deal
Scientists are trying their best to_______ ways to treat the terrible disease caused by Ebola(埃博拉）．
A. come up with B. look forward to
C. talk about D. give up
—The air pollution is terrible.
— It will be worse ________ we take action to protect the environment.
A. if B. unless C. until D. When
