C Complete the sentences with the correct word. • heavy • cost • helpful • crowded • convenient • peace e.g. In a big city, you will always find convenient public transport. 11 He spent the morning in Birmingham, but found the streets very ________. 12 Her cousin hates driving in ________ traffic. 13 They went for a run in the country because they wanted some ________ and quiet. 14 He enjoys living in the city, but he doesn't like the high ________ of living. 15 John lives in the country because he likes the friendly and ________ people.