—How often are the Olympics Games held? — __________.
A. Every year
B. Every four year
C. Every four years
─ Look, Stella is there!
─ That ______ be her. She doesn’t like singing.
| A．mustn’t | B．can’t | C．needn’t | D．won’t |
— Look! The light is still on in our teacher’s office.
— Probably she ______ her work yet.
| A．doesn’t finish | B．didn’t finish |
| C．hasn’t finished | D．won’t finish |
— Your watch looks really nice.
— I ______ it in a small shop last week.
| A．bought | B．have bought |
| C．will buy | D．buy |
— Oh, I left my dictionary in your house.
— Don’t worry. I ______ it to school tomorrow.
| A．take | B．took |
| C．was taking | D．will take |
Dentists always tell people ______ too many sweets.
| A．to eat | B．not to eat |
| C．eating | D．not eat |