They went out for a walk at night, _______ ?
| A．didn’t they | B．did they |
| C．were they | D．weren’t they |
—Who taught ______ English last year?
—Nobody. She taught herself.
A. him B. her C. you
Ge You is ______ interesting actor. He has lots of fans.
A. a B. 不填 C. an
—Could I use your bike for today, Sam?
—_____. I’m not using it.
| A．Sure, go ahead | B．I have no idea |
| C．No, you can’t | D．Never mind |
—Will you stay for some more days?
—Sorry, I_____. My mother called to ask me to go back at once.
| A．mustn’t | B．may not | C．can’t | D．wouldn’t |
—Why didn’t you go to play football with us yesterday afternoon?
—I _____my mother with the housework then.
| A．helped | B．was helping | C．had helped | D．have been helping |