1.The air in Beijing is getting much ______ now than a few years ago.

A. clean B. cleaner C. cleanest D. the cleanest

2.-Mother, how can I become smart?

-Sweet, you should fill your mind with new ideas. The more you read, _____ you are.

A. smartB. smarterC. smartestD. the smarter

3.Peter is good at swimming. He is ____ in our class.

A. strong B. stronger C. strongest D. the strongest

4. Which subject do you like _______, English, math and physics?

A. good B. well C. better D. best

5.Most students think Lady Gaga is one of _________ singers in USA now.

A. popular B. more popular C. most popular D. the most popular

6. Life today is ________ than that in the old days.

A. good B best C. better D. the best

7.He is as _____ as his father this year.

A. strongB. strongerC. strongestD. the strongest

8. Although this house is _______than that one. It is more comfortable.

A. smaller B small C smallest D the smallest

9.Nowadays action movies aren’t as ________ as cartoons among teenagers.

A. popular      B. more popular C. most popular D. the most popular

10.-This sweater is too expensive. I can't afford it.

 -How about this one? It's much______.

A. cheapB. cheaperC. cheapestD. the cheapest