1. 他多长时间拜访祖父母一次？他每月拜访祖父母3到4次。

How ________does he visit his grandparents?　

He _______his grandparents ____________or ______ _______a month.

10. You are __________________( athletic) than Jim.

9. Miss Yang is ___________ ( calm) than Miss Li.

8. It’s ________( hot) in summer in Beijing than that in Dalian.

7. Mary has _________( long) hair than Betty.

6. Which country is _________( large) , China or Japan?

5. My mother is __________ (young) than your mother.

4. Unit 4 is ____________________( difficult) than Unit 5.

3. The sun is ______________( big) than the earth.

2. Mr. Green is ______________( serious) than Mr. Brown.