---What _________ do you want to buy?
---Nothing. Thanks.
| A．else | B．else things |
| C．others | D．other |
—Can you tell me ________? —Sure. I go swimming twice a week.
A. how often do you go swimming
B. how often you go swimming
C. when you go swimming
Remember ________ too much. It’s bad for your health.
A. don’t smoke
B. not smoke
C. not to smoke
Do you know _______ he is from Hainan or not?
A. that B. whether C. if
Peter comes to school ________ in his class every day.
A. early B. earlier C. earliest
—_________? —Size M, please.
A. What can I do for you
B. What color would you like
C. What size do you take