Every year, there______ a number of students taking after-class lessons. The number _______ larger than before.A. are; is B is; are C is; is D are: are
—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.
—How much shall I pay for the telephone call? —You _____. It's free.
—Why did you plant so many trees? — ______ the environment.
—Can we finish the work with ______ money and ______ people? —I'm afraid it's impossible.