—Hi, Jack, there is ________ useful book on the desk. Whose book is it?
— It belongs to my brother．
A. a B. an C. the
—We are proud that the 2008 Olympics Games was held in Beijing.
—______.
| A．So I am |
| B．So am I |
| C．So it is |
| D．So is it |
—Why is the classroom so quiet?
—Everybody ______ to watch the volleyball match.
A, is going
B. goes
C. went
D. has gone
—Look at the monkeys running around on the rocks together.
—Yes, the environment ______ to suit them very well. Let's see the tigers now.
| A．seems |
| B．feels |
| C．looks |
| D．goes |
—How much shall I pay for the telephone call?
—You _____. It's free.
| A．mustn't |
| B．shouldn't |
| C．don't have to |
| D．can't |
—Why did you plant so many trees?
— ______ the environment.
| A．Improve |
| B．To Improve |
| C．Improved |
| D．Improving |