用所给单词的适当形式填空。

1. Tom agreed _____ (watch) the football game.

2. Let's close the door and the windows in order _____ (keep) the room warm.

3. As he was walking to school, he stopped _____ ( help) the blind man cross the road.

4. What would he like _____ (do) ?

5. Our teacher often told us _____ ( not talk) to each  other in class.

6. Do you have anything important _____ ( say) ?

7. It's so kind of you _____ (lend) me some money.

8. I think it's a comfortable room _____ ( live) in.

9. My brother is taking the driving lessons. Every time his teacher teaches him how _____ ( drive) .

10. It was an earthquake. Did you feel the desk _____ ( move) ?

在投针试验中，当平行线空隙a为定值时，针的长度L越大则针与平行线相交的概率越______；当L为定值时，a越大则针与平行线相交的概率越______．