As a rough estimate, Nigeria is _______ Great Britain.
| A．three times the size as | B．the size three times of |
| C．three times as the size of | D．three times the size of |
_____ to the nearest hospital, the injured boy was treated without delay and has been out of danger.
| A．Rush | B．Rushing |
| C．To rush | D．Rushed |
It is demanded that the system of buying train ticket in real names _____ out during the Spring Festival.
| A．will be carried | B．be carried |
| C．to be carried | D．should carry |
- You must have missed the last train to Guangzhou the other day.
- Oh, no, I _____.
| A．haven’t | B．hadn’t | C．don’t | D．didn’t |
The accident has reached a point _____ the police have to be called in.
| A．when | B．that | C． which | D．where |
As a new graduate, he doesn’t know ______ it takes to start a business here.
| A．how | B．what | C．when | D．which |