— There are still many old city walls in Xi’an, _______?
—Yes, there are.
| A．are there | B．aren’t there |
| C．are they | D．aren’t they |
Let’s go to Nanchan Temple,__________?
| A．will you | B．do we | C．may we | D．shall we |
——How long have you worked here?
——__________________.
| A．Since five years | B．Since five years ago |
| C．Five years ago | D．For five years ago |
Peter ________ to help our math teacher carry books yesterday.
| A．tells | B．is told | C．told | D．was told |
——What’s your mother?
——She_________ a teacher, but now she is a doctor.
| A．used to be | B．was used to | C．use to be | D．is used to be |
——How long has his father ________London?
——For two weeks.
| A．been to | B．gone to | C．been in | D．arrived in |