— 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. |
You’d better finish your homework now, I won’t let you out.
A. and B. or C. so
—Dad, must we stop and wait when the light turns yellow?
—I’m afraid we . It’s necessary to obey the traffic rules.
A. need B. must C. may
beautiful flowers Mrs. Green plants!
A. What B. What a C. How
—Does know the answer to the question?
—Yes. Let me try.
A. somebody B. anybody C. nobody
The room is too . Let’s go to somewhere quiet.
A. clean B. noisy C. small