1.am,is--was 是 2.are– were 是 3.do/does – did 做，干 4.can- could 能 5. think – thought 认为 6. buy – bought 买 7. drink-drank 喝 8.have-had 有 9.go-went 去 10.see-saw 看见 11.fall-fell 降落 12. sleep-slept 睡 13. make-made 制作，使 14.come-came 来 15.take-took 带来 16.ride –rode 骑 17. hurt-hurt 弄 18. read-read 读 19. eat-ate 吃 20. get –got 得到
21.dig-dug 挖 22.tell-told 告诉 23.sell-sold 卖
24.write-wrote 写
25. forget-forgot 忘记 26. keep-kept 保存 27. meet-met 遇见 28.feed-fed 喂养 29. put-put 放 30. cut-cut 切，剪
31. let-let 让 32. find-found 找到 33. grow-grew 生 34. may-might 也许 35. sing-sang 唱 36.swim-swam 游泳 37.run-ran 跑 38.say-said 说 39. leave-left 离开 40. lose-lost 丢失
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