Dogs in the wild occasionally had enough food

• A、True
  
  

• B、False
  
  

• C、Not given
  
  

21. Nuzzel helps me _____

22. On twitter I am able _____

23. There are several factors that_____

24. Before my kids go to school, I_____

25. I call my parents_____

A. to listen to others

B. step into my office

C.kiss them goodbye.

D. affect my workout routine

E.to learn how they going

F.to surf the Internet efficiently

Dogs started to bury their bones when they become pets.

• A、True
  
  

• B、False
  
  

• C、Not given