She________ Japanese when she was in Japan. Now she can speak it freely.
A. picked out B. made out C. made up D. picked up
If it were not for the fact that she________ sing, I would invite her to the party.
A. couldn’t B. shouldn’t C. can’t D. might not
Green products are becoming more and more popular because they are environmentally________。
A. friendly B. various C. common D. changeable
—How long do you think it will be________ China sends a manned spaceship to the moon?
—Perhaps two or three years.
A. when B. until C. that D. before
Ladies and gentlemen, please fasten your seat belts. The plane________.
A. takes off B. is taking off C. has taken off D. took off
Sorry, Madam. You’d better come tomorrow because it’s ________ the visiting hours.
A. during B. at C. beyond D. before
