写出下列单词的过去式形式. 1. buy 2. do 3. bring 4

2. do ______

3. bring ______

4. make ______

5. arrive ______

6. come ______

7. forget ______

8. teach ______

9.can ______

10.will ______

12. take ______

13. say ______

14. have ______

15. put ______

16. see ______

17. go ______

18. eat ______

19. is ______

20.grow ______