The little boy showed great interest ________chemistry when he was doing it________
the first time.
| A．in；for |
| B．on；for |
| C．in；on |
| D．for；at |
Chinese students are good at taking exams and you can’t imagine what they are willing to to succeed.
| A．give out | B．go through | C．get over | D．put forward |
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 |