---__________ is it from here to Yangzhou Museum?
--- About 20 minutes by bike.
| A．How long | B．How often |
| C．How far | D．How soon |
Beijing is one of________cities in the world．
| A．big |
| B．bigger |
| C．biggest |
| D．the biggest |
The girl handed everything________she had picked up in the street to the police．
| A．which |
| B．in which |
| C．that |
| D．all |
Look out!Don’t get too close to the house________roof is under repair．
| A．whose |
| B．which |
| C．that |
| D．what |
Do you still remember the chicken farm________we visited three months ago?
| A．where |
| B．when |
| C．that |
| D．what |
—I will go to the countryside to see my grandmother this afternoon，so I can’t go swimming with you．
—________．
| A．It’s my pleasure |
| B．You are welcome |
| C．That’s a pity |
| D．Sure，I am |