He devoted as much time as he could _________ English.
| A．teach | B．to teach |
| C．to teaching | D．teaching |
—________？
—He is tall．
| A．How is he |
| B．What does he like |
| C．What is he |
| D．What does he look like |
The Greens moved to China a few years________．
| A．before |
| B．ago |
| C．late |
| D．／ |
—Listen！Who________the piano？
—My sister．
| A．is playing |
| B．plays |
| C．played |
| D．play |
To be a policeman is interesting________sometimes it’s kind of dangerous．
| A．and |
| B．or |
| C．but |
| D．so |
—I’ve shown you all the interesting and important places of our school．
—Thank you for________so much time．
| A．taking |
| B．spending |
| C．costing |
| D．having |