Ex1: Fill in gap in the sentences below with a suitable preposition or adverb particle.
1. It is predicted that over the next few decades many species will die ___ as once fertile areas turn ___desert.
2. I object ___ being kept waiting. Why can't you be ___ time?
3. She still can't get ___ the shock___ her baby's death.
4. The monitor is responsible ___ our form-master ___ the class.
5. Those workers are ___ difficulty because wage increases cannot keep up ___ inflation.
6. He was absent ___ work yesterday because he was ill. We are ashamed ___ his behavior.
7. Due ___ the rain, they had to postpone the match___ the next day.
8. He is very keen ___ English, but he is not good ___ listening.
9. I was brought ___ in the countryside by my aunt after my parents has pass ___
10. He is very worried ___ his new job because he is not quite prepared ___working.