—It’s difficult for the villagers to cross the river for market.
—I think a bridge _________ over the river.
| A．was built | B．is being built |
| C．has been built | D．should be built |
Sir, you should ________ at the red light, but you didn’t.
| A．stop | B．have to stop |
| C．have stopped | D．not have stopped |
He hurried to the railway station for the last train but didn’t it.
| A．knock | B．announce | C．rush | D．make |
The flight to Guangzhou had to be because of the heavy snow.
| A．put up | B．put off | C．put away | D．put down |
-Sandy is upset now. Why don’t we ?
-That’s a good idea.
| A．cheer her up | B．wake her up | C．pick her up | D．make her up |
You stand in line while waiting for the bus.
| A．mustn’t | B．can’t | C．are supposed to | D．don’t |