—They Shanghai two days ago.
—Yes. They for two days.
| A．leave for; were away |
| B．left for; have been left |
| C．leave for; have been away |
| D．left for; have been away |
—Shall we take a walk after dinner?
—________________.
| A．I think so |
| B．You are welcome |
| C．That’s a good idea |
| D．You are right |
— Jason, I have helped you wash your clothes.
— _______________
| A．You’re welcome. |
| B．I don’t know. |
| C．Well done! |
| D．Thank you very much. |
— Where’s your father, Tom?— He _________ to Changsha.
| A．goes | B．go | C．has gone | D．has been |
I don’t want to live in the city center ________ it’s too noisy.
| A．that | B．when | C．because | D．before |
The Greens _________ in China since 1999. They are having a happy life.
| A．have lived | B．has lived | C．are living | D．lived |