1. 选词填空

turn one's back on, dream up, give away, drop out of, get on

1. （1） It was a great shock that he  me when I needed his support.
3. （2） The guy who  the idea for a marathon race was a Frenchman.
5. （3） He  high school at the age of 16 because his family was poor.
7. （4） The young man is committed and he is certain to  in the world.
9. （5） The face hidden behind that overcoat and the glasses failed to  what was inside his mind.