What makes the space shuttle _____ is that it takes off like a rocket but lands like an airplane.
| A．exceptional | B．strange | C．unique | D．rare |
— Will you go to the World Expo in Shanghai by bullet train after the Examination?
—_______ I may go by air.
| A．Why not? | B．Not really. | C．How come? | D．Oh, great. |
Let’s keep to the point or we ___________ any decisions．
| A．will never reach | B．have never reached | C．never reach | D．never reached |
In the Great Depression, the American government couldn’t find good solutions _____ the unemployment problem
| A．of | B．to | C．on | D．about |
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 |
I spent five hours_____________ the book__________ I paid 10 dollars.
| A．reading; that | B．to read; for that | C．read; which | D．reading; for which |