If we can keep ____ this speed, we'll arrive there in two or three hours.
| A．on | B．to | C．up | D．at |
students are required to take part in the boat race．
| A．Ten strong young Chinese |
| B．Ten Chinese strong young |
| C．Chinese ten young strong |
| D．Young strong ten Chinese |
It is the test system，the teachers，that is to blame for the heavy burden of middle school students nowadays。
| A．other than | B．rather than |
| C．more than | D．or rather |
Having failed in many attempts，the bird managed to escape from the cage．
| A．suddenly | B．naturally |
| C．immediately | D．eventually |
After several part – time jobs, he’s now got a job in a bank.
| A．precious | B．scary | C．specific | D．stable |
Since David ________ downloaded a virus into his computer, he can not open the file now．
| A．readily | B．accidentally | C．horribly | D．irregularly |