用所绘单词的适当形式填空。

1. She            (cook) dinner every day.

2. Many             (leaf) are flying (飞) in the sky.

3. Would you like             (open) the door?

4. The boy             (sleep), he is very lazy.

5. Is that Lisa             (speak)?

下列属于废水的物理处理法的是( )。

A．吸附法
B．气浮法
C．混凝法
D．离子交换法