--- Middle school students hardly know anything about shopping online, ____ they?
--- ________. It’s very popular with teenagers.
| A．do; No | B．do; Yes | C．don’t; No | D．don’t; Yes |
Enough sleep is good for health. If you for your favorite games, you will be exhausted the next day.
A. stay up B. show up C. give up
--Would you like to go to the watertown with us this weekend?
--Thanks. I there twice. I hope you have a good time there.
A. went B. have gone C. have been
David his friend’s invitation to the picnic in order to stay at home and study for the test.
A. expected B. refused C. received
Tell me and I’ll forget. Show me and I not remember. Let me try and I’ll understand.
A. can B. may C. must
you become a professional soccer player, you will have a happy life.
A. If B. Unless C. Until