Paper produced every year is the world’s production of vehicles
A three times weight of B three times the weight of
C as three times as heavy D three times so heavy as
To his delight, Tom quickly earned the trust of his girl friend and then _____ of her parents.
| A．one | B．ones | C．that | D．those |
In my opinion, the view Jennifer the other day is well worth discussing at this meeting．
| A．put forward | B．put out |
| C．put on | D．put off |
Only when the final examination was coming ______ he had quite a lot to do．
| A．he realized | B．he had realized |
| C．had he realized | D．did he realize |
Practicing Chinese kong fu can not only ______ one’s strength, but also develop one’s character．
| A．bring up | B．take up | C．build up | D．pull up |
Scientists are convinced ___ the positive effect of laughter ____ physical and mental health．
| A．of; on | B．by; in | C．of; at | D．on; at |