A driver should __ the road when .
A concentrate on; drive B. concentrate in; driving
C. concentrate to; drove D. concentrate on; driving
These stories are about the everyday life of ordinary people who the great dangers in China over the past few years.
| A．have experienced | B．are experiencing |
| C．have been experiencing | D．experienced |
Amazing it is, an astronaut’s superior position is filled with potential danger.
| A．when | B．if | C．unless | D．as |
The project to developing the economy and reducing poverty when it is completed.
| A．has contributed | B．had been contributed |
| C．will contribute | D．is contribute |
Overseas Chinese are particularly sought out for positions a high degree or leadership is required.
| A．where | B．which | C．when | D．what |
Thanks to his open-minded parents and schoolmaster, he was lucky enough to grow upthe positive impact of sports.
| A．exposed to | B．to expose to |
| C．being expose to | D．having exposed to |