Urban gardening came into being as a result of（   ）

• A、the lack of land for gardening
  
  

• B、new technology
  
  

• C、government encouragement
  
  

• D、the increasing population
  
  

Raised beds are popular because they（   ）

• A、are efficient
  
  

• B、are cheap
  
  

• C、last long
  
  

• D、contain fertilizers
  
  

Task 2.

21. To become a school teacher, one needs

22. Mrs. Cook often goes out to collect_

23. Mrs. Cook offers slow students extra help.

24. Our whole class take Mrs. Cook as

25. I am lucky to have Mrs. Cook as

A. in class

B. my teacher

C. after school

D. a role model

E. a college degree

F. teaching materials