V. 选择填空：从A、B、C中, 选出一个最佳答案完成句子。
21. — is the population of the town
A. What B.How much C.How many
22. — What a great thing to have a robot at home!
— Robots are really useful. One day they will help people do almost ________.
A. something B. everything C. nothing
23. — Have you seen the movie Zootopia
— Yes, I have seen it twice. Of all the movies I’ve ever seen, it’s the ________ one.
A. interesting B. more interesting C. most interesting
24. — I think everyone should play a part in saving our environment.
— I agree. For example, there will be less air pollution ________ we drive less.
A. if B. so C. though
25. — These shoes look cool. ________ are they
— They are on sale, only $69.
A. How much B. How long C. How many
26. — Tom, let’s hang out after school.
— Sorry. I have ________ Frank to work on the biology report with him.