-----Excuse me. Could you direct me to the nearest post office?
______ straight on and you’ll see it on your right.
| A．When going | B．Going | C．If you go | D．Go |
The new law states that people ________ drive after drinking alcohol.(2012·上海)
| A．wouldn't | B．needn't | C．won't | D．mustn't |
—What do you think we can do for our aged parents?
—You________do anything except to be with them and be yourself.
| A．don't have to | B．oughtn't to |
| C．mustn't | D．can't |
Parents________send their children to school when they reach six years old.
| A．could | B．were able to |
| C．ought to | D．would |
—I don't care what people think.
—Well, you________.
| A．could | B．would | C．should | D．might |
I ________ use a clock to wake me up because at six o'clock each morning the train comes by my house.(2012·新课标全国)
| A．couldn't | B．mustn't | C．shouldn't | D．needn't |