— Must I return the book tomorrow?
— No, you ________. You can keep it for three days.
| A．mustn’t | B．needn’t | C．can’t | D．may not |
We often see the signin a hospital.
| A．NO SMOKING . | B．NO DRINKING |
| C．NO PHOTOS | D．NO FISHING |
The Leaning Tower of Pisa (比萨斜塔) is so great _____ old building.
| A．a | B．an | C．the | D．/ |
There is a big tree in ________ front of our classroom and a big blackboard_in ________front of it.
| A．/; the | B．the; / |
| C．the;the | D．/; / |
“Don’t ____ on the computer. It’s time for class.” Says my teacher.
| A．play | B．playing |
| C．be playing | D．is playing |
Look. Mumwith my aunt.
| A． talks | B．to talk |
| C．is talking | D．talking |