— 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 |
She ________ a model before she _______ a superstar.
| A．have been, became | B．had been, become |
| C．had been became | D．has been, become |
Not only she but also Dick and I _______ interested in maths.
| A．is | B．are | C．am | D．be |
The ____ of some wild animals reminds us __ the problems on environment.
| A．loss, of | B．lose, of | C．loss, that | D．lost, to |
He devoted as much time as he could _________ on the plan.
| A．working | B．to work | C．worked | D．to working |
---He's seldom late for school,______?
---_____. He is used to going to school early.
| A．is he, No | B．has he, No | C．isn’t he, Yes | D．hasn’t he, Yes |