. Don’t leave your keys in the car. Someone might steal ________ .
| A．one | B．that | C．this | D．it |
The teacher commanded that the exercises in an hour.
| A．was finished | B．were finished | C．should finish | D．be finished |
In your class, you should allow students to voice their opinions, they are different from your own.
| A．until | B．unless | C．even if | D．as though |
—What’s your opinion about the war in Libya?
— Wouldn’t it be wonderful world of all nations lived in peace with one another?
| A．the; / | B．a; / | C．the; the | D．a; a |
Though the price of gas has gone up a lot since November 2010, the man doesn’t it at all, for he has a well-paid job.
| A．dream about | B．care about | C．take care of | D．think of |
What great trouble the boy had his father to quit smoking!
| A．persuaded | B．persuade | C．to persuade | D．persuading |