5. 让动物回到大自然中去.

Let animals go back to　　　　　　　　

4. 在北京动物园有各种各样的动物

There are　　　　　　　　 animals in Beijing Zoo.

3. 当我吃午饭时,小明来了.

Xiaoming came in　　　　 I was　　　　 my lunch.

2. 我想什么也不能阻止我们执行这项计划.

I think nothing can　　　　 us　　　　 carrying on the plan.

1. 校门开着.

The school gate　　　　　　　　　　　

5. Three boys　　　　 in the river when I arrived there.

4. While he　　　　 his homework, his mother was cooking in the kitchen.

3. They　　　　 football on the playground at four o'clock yesterday afternoon.

2. Look! Some school boys　　　　 kites in the park.

swim　 run　 play watch　 do　 fly　 look

1. When I came into the room, they　　　　 TV.