I. Give the correct form of the word given to complete the sentences. 1. In big cities, there are many wealthy people, but __________is still a problem. (poor) 2. Life must be __________in the slums. (difficulty) 3. The kids look __________enough to go out now. (health) 4. The air in the city is very __________. (pollute) 5. Well make this beach clean and __________again. (beauty) 6. The most popular __________ at recess is talking. (act) 7. If you want to have a __________ body, you should play sports. (health) 8. We have ____________ work to do in the afternoon than in the morning. (little) 9. Wind power is convenient and ___________ . (abundance) 10. At this time next week, we ___________English grammar. (study) 11. To have hundreds of___________ people sleeping in the streets of a rich city like London is a crime. (home) 12. We lived in rented__________ before buying this house. (accommodate) 13. Drought has________ many countries in Africa after a long period of dry weather. (affect) 14. Nuclear power can be used for___________ or military purposes. (peace) 15. A megacity is a very large city with big____________. (popular)