When I was walking past his room yesterday evening．I heard him ____the piano ．
| A．playing | B．to play |
| C．played | D．play |
This morning I have art lesson, art is easy subject..
| A．a, a | B．an, an |
| C．a, an | D．an, a |
My parents ask me _______ in order to make me healthy.
| A．build up me | B．build me up |
| C．to build up me | D．to build me up |
—May I use your dictionary, Lily?
—Sure, _______.
| A．go ahead | B．you can ask Bill |
| C．you can’t | D．that’s all right |
Sugar tastes sweet. But, _______, it’s bad to eat too much.
| A．such as | B．for example |
| C．in fact | D．though |
You had better ask your brother _______ playing computer games. It’s bad for him.
| A．to give up | B．not to give up |
| C．to give it up | D．not give it up |