21. The winning of hosting _______ 2010 World Expo is _______ victory not only for Shanghai residents, but for ___________ people of the whole Chinese nation.
| A．the; a; the | B．a; the; a | C．a; a; the | D．the; the; a |
Shelly had prepared carefully for her English examination so that she could be sure of passing it on her first .
| A．intention | B．attempt | C．purpose | D．desire |
The poor boy the test again; in that case, his mother will be very disappointed.
| A．must have failed | B．might fail | C．could have failed | D．should fail |
It snowed heavily for three days and they were separated from the outside world.
| A．in the end | B．on end | C．by the end | D．at the end |
It’s said that there are plenty of hotels in that town. There be any difficulty for you to find somewhere to stay.
| A．wouldn’t | B．mustn’t | C．shouldn’t | D．needn’t |
If it was not an accident, he must have done it .
| A．on purpose | B．in common | C．on occasion | D．in time |