Susan will not arrive at the airport on time _____she hurries up．
A．once B．if C．unless
Jane is one of the students in the classhave ever been to China.
| A．who | B．whose | C．which | D．whom |
As soon as the teacher came into the classroom, we stoppedandout our books.
| A．to talk; took | B．to talk; to take |
| C．talking; took | D．talking; taking |
our football team failed in the match, we did our best.
| A．Though | B．But | C．Because | D．As |
We hope scientists willways to solve the nuclear pollution(核污染) happened in Japan.
| A．be made of | B．cheer up |
| C．give up | D．come up with |
―That actor often joins in different activities in Beijing. Do you know?
―For 5 years.
| A．how soon he will come back |
| B．how long he has stayed there |
| C．when he went there |
| D．when he will come here |