29. The sandstorm_________ for several days，which left a terrible sight across the west.
| A．kept off | B．kept away | C．kept back | D．kept up |
You’d better put a screen-safety on your computer _____ your eyes from _____.
| A．keep; damaged |
| B．stop; being damaged |
| C．to prevent; damaged |
| D．to protect; being damaged |
Under the Dome, ________ 103-minute documentary released by Chai Jing, has pushed________ public awareness about air pollution and encouraged people to join in efforts to make a difference.
| A．the; the | B．a; a |
| C．the; 不填 | D．a; 不填 |
______ the boy to save the money, but he would not listen to me.
| A．advised | B．persuaded |
| C．suggested | D．insisted |
Some parts in South China have experienced ______ this year as they did last year.
| A．twice as much rain | B．rain twice as much |
| C．as twice much rain | D．twice rain as much |
My brother is on a special _______ to lose ________weight.
| A．food; / | B．food; his |
| C．diet; / | D．diet; his |