1. is (过去式) ____________ 3. come (ing形式) ____________ 5. last (反义词) ____________ 7. happen (第三人称单数) ____________ 9. China (形容词形式) ____________ |
2. we (宾格形式) ____________ 4. twelve (序数词) ____________ 6. clean (反义词) ____________ 8. dumpling (复数形式) ____________ 10. cold (反义词) ____________ |