1. 选词填空

pick up,  as if,  fall down,  as a result, in the direction of, on the edge of, be covered with,  less than,  close to,  the moment

1. （1） I saw him drive away the city.
3. （2） She stood the river staring into space.
5. （3） It was John who broke the window. Why are you talking to me I had done it.
7. （4） I saw her, I told her the good news that he was admitted to Beijing University.
9. （5） I discovered that the mountain was snow.
11. （6） You must watch your step so as not to .
13. （7） We finished the run in half the time allowed
15. （8） the school there was a beautiful park with many trees around it.
17. （9） , people will eat more food to try to make up for that something missing.
19. （10） Sam some knowledge of the computer just by watching others working on it.