You can't be careful enough to drive on the __________ road in __________ weather.
| A．freezing; frozen | B．freezing; freezing |
| C．frozen; freezing | D．frozen; frozen |
The girl in the snapshot was smiling sweetly, her long hair ________ .
| A．flowed in the breeze |
| B．was flowing in the breeze |
| C．were flowing in the breeze |
| D．flowing in the breeze |
The soldier rushed into the cave, his right hand ________ a gun and his face ________ with sweat.
A held; coveredB. holding; covering
C. holding; covered D. held ；covering
One primary goal of UNESCO is to ________ modern knowledge society in which all people can participate in information and knowledge.
| A．make up | B．pick up |
| C．build up | D．give up |
The police ________ him to see if he had a gun.
| A．searched for | B．searched |
| C．looked | D．looked for |
If your knowledge can be ________ with my experience, we are sure to succeed.
| A．joined | B．united |
| C．connected | D．combined |