作业帮求过去式：1,smell 2,walk 3,pick 4,happen 5,help 6,learn
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求过去式：1,smell 2,walk 3,pick 4,happen 5,help 6,learn
求过去式：1,smell 2,walk 3,pick 4,happen 5,help 6,learn
求过去式：1,smell 2,walk 3,pick 4,happen 5,help 6,learn
1.smelt
2.walked
3.picked
4.happened
5.helped
6.learnt
有不明白的地方再问哟,祝你学习进步,更上一层楼! (*^__^*)
1.smelt
2.walked
3.picked
4.happened
5.helped
6.learnt
smelt
walked
picked
happened
helped
learnt / learned