— Have you ever worked with a tape recorder?
— I ________ it a lot when I was studying French in school.
| A．used | B．was used | C．have used | D．had used |
Many policemen and soldiers are ______ the forest _____ the prisoner escaping from prison.
| A．searching for; searching |
| B．searching; searching |
| C．searching; in search of |
| D．in search for; searching for |
Facing the ________situation, the boss of the company looked____
| A．puzzling, puzzled | B．puzzling, puzzling |
| C．puzzled, puzzled | D．puzzled, puzzling |
As we all know, _________ car is becoming _________ popular way of transportation in big cities.
| A．the; a | B．a; / | C．the; / | D．a; the |
—Tom, you are smoking again?
—______? It’s none of your business.
| A．So what | B．How come |
| C．Why not | D．What for |
It was too hard for the firefighters to get close to the burning building. All their attempts to rescue the people trapped were ______.
| A．in place | B．in return |
| C．in vain | D．in danger |