四、阅读短文，从方框中选出能填入文中空白处的最佳选项，选项中有两项为多余选项
These days, a video from the Beijing Wildlife Zoo goes viral (走红). What is so interesting about this video? It shows a dog playing with lions and tigers, animals that are four to five times its size! Is the dog in danger? Of course not. 1 Animals make friends with members of different kinds.
A zookeeper said that they raised the dog together with the lions and tigers when they were very young. They were a strange but loving family. If this seems surprising, remember that people have made friends with animals for a long time. 2 Maybe you have a pet yourself.
3 At an animal centre, a cat named Marina and a pig named Laura became friends after they came to the centre. 4 They grew up in the wild without their mothers. They were close to each other and played together when they first met.
Why do different animals sometimes become friends? In the wild, animals are busy hunting (捕猎) for their food. They have to work hard to keep themselves safe and protect their families. 5 But when they needn't do these things, they have the chance to make friends with others, even from different kinds.
A. Some animals may even hurt people.

B. These activities take time and energy.
C. Most of the animals share the same food.
D. Both of them lived a hard life in the past.
E. In fact, the dog and the big animals are friends.
F. Many people keep pets like cats and dogs at home.
G. There are other stories of cross species friends.
1. 2. 3. 4. 5.