Cold weather can be hard on pets, just like it can be hard on people. Sometimes owners forget that their pets are just as used to the warm shelter (住所) as they are. Some owners will leave their animals outside for a long period of time, thinking that all animals are used to living outdoors. This can put their pets in danger of serious illness. There are things you can do to keep your animal warm and safe....
What do we learn about pets from Paragraph 1?

A．They are often forgotten by their owners.

B．They are used to living outdoors.

C．They build their own shelters.

D．They like to stay in warm places.