—What did you do on Earth Day this year?
—We _____ a show to spread the message about protecting the environment.
A. put on B. put up C. put away
So far, the AIIB（亚投行）_____ 57 countries to be the founding members.
A. attracted B. has attracted C. will attract
—Don’t smoke here, Dad. Smoking _____ in public places.
—Oh, sorry. I’ll stop right now.
A. isn’t allowed
B. aren’t allowed
C. doesn’t allow
—What would you like, tea or coffee?
—_____, thanks. I just prefer a glass of water.
A. Both B. Neither C. Either
— Miss Lin _____ my desk-mate with her lessons when I left school.
—She is really a nice teacher.
A. helps B. is helping C. was helping
—_____ does your father go to the fitness center?
—He exercises there twice a week.
A. How soon B. How often C. How long
