3. teach ___________
5. are ___________
7. have ___________
9. play ___________
11. put ___________
4. is ___________
6. go ___________
8. do ___________
10. win ___________
12. hurt ___________
1. bought 2. caught 3. taught 4. was 5. were 6. went 7. had 8. did 9. played 10. won 11. put 12. hurt
写出下列动词的过去式. 1. buy 3. teach 5. are 7. hav相关攻略