— I usually go to school by bus.
— Why not going there on foot?
A. trying B. try C. to try
—How much is the computer?
—About three yuan.
A. thousand B. thousands of C. thousands
Mary’s answer is very different from
A. I B. my C. mine
John plays soccer every day, he?
A. isn't B. does C. doesn't
Now the air in our city is ______ than it used to be. Something must be done to stop it.
A. good B. better C. worse
—________ do you go to the library, Linda?
—Every week.
A. How long B. How often C. How soon
