用括号中数词的正确形式填空: 1. I have___(4) bags of rice. 2. Tom is___(12) years old now. 3. There are___(13) trees in the park. 4. We need___(15) baskets to carry these eggs. 5. She oftenspends ___(18) hours on playing computer games. 6. The bridgeis ___(40) meters long. 7. The chaircosts ___ (99) dollars. 8. He has__(27) books to read this year. 9. Lucy has___(35) dresses. 10. Jackhas___(80) friends.