20. If you want to be healthy, you must take ____(much) exercise.

19. Do you often brush your ____(tooth) before you go to bed?

18. Mr. Green is a ____(west). He comes from Italy.

17. Bob ____(forget) to close the window yesterday.

16. Jenny went ____(hike) with her family last Sunday.

15. I’m thirsty; would you give me something ____(drink)?

14. Katrina knows the story ____(well) than I.

13. There are many ____(different) between city and country.

12. You look ____(health). You’d better do more exercise every day.

11. The doctor told me to eat ____(little) and exercise more.