根据句意用方框内词的适当形式填空。 heavy  outgoing  funny  popular  athletic  kind  useful  beautiful    cheap  smart 1. You should study English hard. I think English is _____. 2. An elephant is much _____ than a horse. 3. My cousin is good at his schoolwork. He is really _____. 4. My friend Tim plays basketball every day. He is _____ than me. 5. Molly is always ready (乐意的) 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 one of _____ teachers 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 Beijing is getting more and _____.