i need a book _scinece.it was _diffcult 1.no,little 2.about,a few 3.on,alittle 4.about,little

分类: 作业答案 • 2022-01-09 18:05:27

问题描述：

i need a book ___scinece.it was ___diffcult 1.no,little 2.about,a few 3.on,alittle 4.about,little

答

on/about a little
选3
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i need a book ___scinece.it was ___diffcult 1.no,little 2.about,a few 3.on,alittle 4.about,little