1. buy ______ 2. do ______ 3. bring ______ 4. make ______ 5. arrive ______ 6. come ______ 7. forget ______ 8. teach ______ 9.can ______ 10.will ______
11. skate ______ 12. take ______ 13. say ______ 14. have ______ 15. put ______ 16. see ______ 17. go ______ 18. eat ______ 19. is ______ 20.grow ______
写出下列单词的过去式形式。
1. is _________________ 3. shine _________________ 5. know _________________ 7. grow _________________ 9. give _________________
2. see _________________ 4. follow _________________ 6. teach _________________ 8. put _________________ 10. are _________________