I’m sleepy．I prefer _____at home to going out for a walk．
| A．sleeping | B．to sleep |
| C．slept | D．sleep |
When I was walking past his room yesterday evening．I heard him ____the piano ．
| A．playing | B．to play |
| C．played | D．play |
Dad ,you have worked for three hours ．Stop ____and have a vest, please ．
| A．to work | B．working |
| C．work | D．works |
----Why don’t you go out to play , Rose?
----I’m afraid I can’t ．I have much homework ____．
| A．do | B．does | C．doing | D．to do |
In the library , you keep quiet.
| A．may | B．might | C．must | D．can |