Don’t go onto the thin ice, ____ you’ll fall into the river.
| A．but | B．or | C．and | D．so |
-_____ you _____ your drawing?
-Not yet. It will be done in a few minutes.
| A．Did, finish | B．Will, finish | C．Do, finish | D．Have, finished |
The teacher told us the earth ________ around the sun.
| A．goes | B．went | C．go | D．will go |
He’s been in China for two years. And he’s used to _______ in China.
| A．lives | B．living | C．to live | D．live |
_______ his help, we finished the work on time.
| A．Thanks for | B．Thank | C．Thanks to | D．Because |
-_____ have you worked? -Since 2 pm.
| A．How soon | B．How long | C．How often | D．How far |