The hotline_________ be very busy，but keep trying and you’ll get through．
| A．should | B．must | C．can | D．would |
In January, 2004, the United States successfully launched “Spirit”, a Mars Exploration Rover, _____ a new milestone in the history of mankind.
| A．it marked | B．marking | C．marked | D．to mark |
The speech by the mayor of Shanghai before the final EXPO 2010 is strongly impressed ____ my memory.
| A．to | B．over | C．by | D．on |
Many people coming from all over the country arrived at the same ____, a small village, to attend a live meeting.
| A．direction | B．game | C．destination | D．time |
This machine _____. It hasn’t worked for years.
| A．didn’t work | B．wasn’t working | C．doesn’t work | D．isn’t working |
The bridge built ten years ago _____ the island _____ the mainland.
A connects; to B. connecting; with C. is connected; to D. connected; by