— I called you this morning, but nobody answered it.
— Oh, we ______ some running in the park.
| A．are doing | B．were doing |
| C．have done | D．did. |
Are you free now? I have ___________ to tell you.
| A．new anything | B．new something |
| C．anything new | D．something new |
There is a ______ tree in our school.
| A．20 meters tall | B．20-meters-tall | C．20-meter-tall | D．20 meter tall |
He spent a week ____ the novel.
| A．to read | B．in reading | C．on reading | D．for reading |
— I broke the window. — You ____ play football near the window.
A should B. shouldn’t C. had better D. must
—Must I come at four o’clock?
— Oh, no, you ____.
| A．don’t | B．mustn’t | C．don’t have to | D．can’t |