1. 阅读短文判断正误。

There is a zoo in our city. It's very big. In the zoo, there are many animals. Look, the birds are singing in the tree. A bear is riding (骑)a bike. A tiger is eating meat (肉). Two monkeys are climbing (爬)a tree. They are happy in the zoo.

1. （1） The birds are flying in the sky.
   

3. （2） Two bears are climbing a tree.
   

5. （3） A tiger is eating meat.
   

7. （4） The animals are happy in the zoo.