1. What was his ____ (反应) to your answer?
2. We have bought lots of ____ (设备) for our new lab.
3. The lock has ____ (生锈) and needs oil.
4. I came to the ____ (结论) that he had been lying.
5. He kept his ____ (平衡) with his arms on top of the wall.
6. The ____(沸腾的) kettle was giving off steam.
7. As a result of pollution，there are many dead fish ____ (漂浮) on the water.
