—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
—Can we finish the work with ______ money and ______ people?
—I'm afraid it's impossible.
A．less; fewer
B．few; less
C．less; less
D．fewer; fewer
—Computer is so useful. It can do almost everything.
—Yes, but it ______ what to do.
A．will tell
B．has known
C．must be told
D．is told
