根据句意用方框内词的适当形式填空。 heavy, outgoing,  funny,  popular, athletic,  useful, beautiful,  friendly,  cheap, intellectual 1. You should study English.I think it is_____. 2. An elephant is much than a tiger. 3. My cousin is good at his schoolwork. He is _____. 4. My friend Tim plays basketball every day! He is_____than me. 5. Molly is always ready to help others.  She is quite_____ 6. This T-shirt is too expensive.  Do you have a _____ one? 7. Mary likes students and teaches well. She is_____in our school. 8. Tom and Peter are twin brothers. In some ways they are different. Tom is quieter, but Peter is _____ 9. Tony is_____than any other student in our class.  He always makes us laugh. 10.I hope my country is getting more and_____.