MEXICO CITY IS THE ……… CITY IN THE WORLD.A. BIGGEST B.BIG C.BIGGEST...

6.Mexico city is the ……… city in the world.A. biggest B.big C.biggest D.biggerIII. Read the dialogue. Choose the best answer to complete the sentences.Mr.Hai is a farmer. He lives in the country. He has some paddy fields and he produces a lot of rice. Near his house, he has a small field and he grows a few vegetables. He also has a few fruit trees. They produce a little fruit. Mr.Hai has some animals. He has two buffaloes and a few cows. He has some chickens. They produce a lot of eggs. He also has a dog and two cats.