In front of the house _____ with a history of 100 years．
| A．does a tall stand | B．stands a tall tree |
| C．a tall tree is standing | D．a tall tree stands |
The winning of hosting ______ 2010 World Expo is ______ victory not only for Shanghai residents, but for the people of the whole Chinese nation.
| A．the; a | B．a; the | C．a; a | D．the; the |
．Never before______ so highly successful in his attempts to forecast the weather accurately on a small scale．
| A．man has been | B．man is | C．has man been | D．will be man |
．__________, we would not have achieved so much.
| A．If they didn’t help us | B．If it hadn’t been their help |
| C．Weren’t it for their help | D．Had it not been for their help |
How long___ stay with the company depends on___we’re satisfied with each other.
| A．I will; if | B．I will; whether |
| C．will I; if | D．will I; whether |
No．50 High School is as new as No．48 High School．____, it is more beautiful．
| A．If anything | B．If something | C．If necessary | D．If so |