用所给词的适当形式填空。 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.ln 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 Beijing is getting more and__________.