The scientists in China are trying __________ the ways to reduce the fog and haze (减少雾霾)．
| A．look for | B．to look for |
| C．to find out | D．find out |
The scientists in China are trying __________ the ways to reduce the fog and haze (减少雾霾)．
| A．look for | B．to look for |
| C．to find out | D．find out |
试题篮
()
粤公网安备 44130202000953号
