The thief was noticed _____the office building by the back door on the screen.
| A．enter | B．enter into |
| C．to enter | D．to enter into |
—Would you like to come to dinner tomorrow evening?
—____.
| A．Yes, it’s true. | B．You really do. |
| C．It’s upstairs. | D．Yes, I’d love to. |
When I got to the bus stop. I missed the early bus and I had to____ the next one.
| A．give up | B．keep off |
| C．call off | D．wait for |
Everyone ____ has been to Shanghai says it is a modern city.
| A．why | B．whose | C．who | D．which |
—Mr. Wang, must I come again to clean the classroom on Sunday?
—No, you____ . I have asked Kate to do it.
| A．can’t | B．mustn’t | C．needn’t | D．shouldn’t |
If overweight people eat less and take more exercise, they’ll soon feel much____.
| A．fatter | B．older | C．bigger | D．healthier |