He hadn’t paid for his water so the company had________it off.
| A．put | B．keep |
| C．shut | D．take |
In summer, food will go bad if________in room temperature.
| A．leaving | B．left | C．being left | D．having left |
QQ,________you can chat with your friends, makes communication easy.
| A．why | B．which | C．that | D．where |
_____ you don’t lose heart, I’m sure you can pass the coming examination.
| A．Unless | B．As long as | C．If not | D．Although |
__________all kinds of difficulties，the workers have made rapid progress in the construction of
the World Expo 2010 Shanghai．
| A．With | B．For | C．Under | D．Beyond |
_______of the household rubbish___recycled or reused since the new technology was applied.
| A．Three-fourth; has | B．Three-fourths; have |
| C．Three-fourths; has been | D．Three-fourth; have been |