用所给单词的适当形式填空。

1. There ______________ (be) some water in that bottle.

2. There are 5 basketball ______________ (play) in every team.

3. ______________ (be) you at home last night?  Yes, I was.

4. ______________ (not speak) to your mother like that.

5. At ______________ (one), I didn't know him, but now I do.

6. What time ______________ you ______________ (get) up every day?

7. Let him ______________ (have) a drink of orange, please.

8. When everybody ______________ (seat), the meeting began.

9. I ______________ (not have) any time to do it.

10. This story ______________ (happen) near one year ago.

劣质橡皮质硬，擦字时打滑，字擦不干净，这是由于物体表面越光滑，摩擦力小的缘故。小明用橡皮轻轻擦字没有擦干净，然后他稍加用力就擦干净了，这是通过      来增大橡皮与纸面的摩擦的。