Did you see them _____ the basketball this morning?
| A．playing | B．plays |
| C．to play | D．are plying |
—What your father ?
—He is a driver.
A．do, does B．does, do C．do, do
—What are you in?
—I’m in Three.
A．class, class B．class, Class C．Class, Class
—Must we keep the window _______ all the time?
—No, you don’t have to.
| A．opening | B．opened | C．to open | D．Open |
We _______ play on this road. There is too much traffic.
| A．must | B．mustn’t | C．need | D．needn’t |
The old man was _______ sad _______ say a word when he heard the bad news.
| A．too; to | B．enough; to | C．such; as | D．so; as |