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i don't know how to do it句型转换i don't know[ ][ ][ ]do. i don't know ()to do.填what还是how I don't know.Do it how can i 歌词i don't know how do I don’t know what to do.I don’t know how to do.（ × ） 第二句 how 怎么错了?I don’t know what to do.(正确) I don’t know how to do.（ × ） I don t know how I should do it同意句I don t know how ____ ____ it i dont know what to do (next) 和i dont know how to do (next)的区别 为什么I don't know what to do成立而I don't know how to do不成立 You know,I still love,don't ask me.I don't know how to do it.3Q 7.I don’t know.How do I use commas?（变成一个复合句） I don’t know I use commas.I don’t know怎么写? I don't know how to say it in english How to do i don't know how to do it为什么how后要有一个to I don't know how to say it in english How to do i don't know how to do next还是what to do next I don't know how should I do和 I don't know how I should do 这两个哪个对?为什么 Mary doesn't know how to do it.i don't either 为何不用neither I don't know _____ A.how to do B.which to do C.what do D.where to do I don't know （）.can you help A.what to do it.I don't know （）.can you help A.what to do it.B.how to do it C.how to do D.to do how