--- Why didn’t you follow us to get on the underground?
--- I tried to, but it started moving _________ I could get on it.
| A．while | B．before |
| C．as soon as | D．after |
I’m too tired．I must ________ a rest．
| A．stop |
| B．stop having |
| C．stop to have |
| D．stop have |
It takes me fifteen minutes ________ from my home to the bus station．
| A．walk |
| B．walking |
| C．walks |
| D．to walk |
—________ is it from here to the supermarket？
—About twenty minutes’ walk．
| A．How far |
| B．How long |
| C．How often |
| D．How many |
—____ can you finish this English exam？
—In about one and a half hours．
| A．How far |
| B．How often |
| C．How soon |
| D．How long |
—________ does it take you to walk to school？
—About 20 minutes．
| A．How far |
| B．How often |
| C．How long |
| D．How soon |