Some students from Grade 9 volunteered to do some cleaning f

Some students from Grade 9 volunteered to do some cleaning f do some cleaning造句 do some cleaning什么意思 do some cleaning 求中文翻译! My classmates have volunteered _____ (do) some work for the the students are cleaning the clasroom .some are cleaning th Some students are cleaning the windows .others are cleaning do some clean与do some cleaning有什么区别 是do some cleaning还是do some cleanings啊~为什么 clean和do some cleaning的区别 I____(help)my mother do some cleaning. if i .,i will do some cleaning.