某一自然湖泊中，经生物资源调查发现，湖水中生活着鱼类、虾类、蟹类和各种水生植物及藻类，其中武昌鱼生活得特别良好，请问：其中称为种群的是[ ]

A．鱼类

B．武昌鱼

C．虾类

D．水生植物

改错题。

1. How is Jane yesterday? _____________________

2. He go to school by bus last week. ______________________

3. He often goes home at 6:00 last month. ______________________

4. I can fly kites seven years ago. ____________________

5. Did you saw him just now. ___________________

6. Tom wasn't watch TV last night. ___________________

7. I didn't my homework yesterday. ___________________

8. He wait for you three hours ago. ___________________

9. Who find it just now? _________________

10. What make him cry (哭) just now? __________________