The twins in the study differed in（   ）

• A、sleeping habits
  
  

• B、Exercise frequency.
  
  

• C、working hours .
  
  

• D、food preference
  
  

Some people help the wild dogs to survive the cold winter.

• A、True
  
  

• B、False
  
  

• C、Not Given
  
  

Task 2:

20、Being sick away from is（   ）

21、You are advised to recover（   ）

22、The best care for illness is（   ）

23、If you cannot bear the noise from TV,（   ）

24、A few useful translated phrases help you（   ）

25、You can buy medicine（   ）

A.ask for medicine.

B. at your own pace

C. water and hot

D. a terrible experience.

E. At a nearby store.

F. read your favorite book.

G. suffer from a cold