Which is ciean when it is black and dirty when it is white?

Which is ciean when it is black and dirty when it is white? what is biack when it is ciean and white when it is dirty?(翻译意思） dad is going to ciean his car的意思 our classyoom is so ciean and tidy.(改为感叹句) When l am ciean,l'm black.When l am dirty,l'm white.What am 英语谜语：when I am white,I am dirty.when I am biack,I am ciean.what am when chosing a job,which is more importantsalary or interest when we are in winter.which season is Australia in? when we are in winter.which season is Australia in? my mother is busy ____ the room.A,clean B.to ciean C,cleaning D,cleans 连词成句；your to turn blackboard it is ciean the 怎么写啊 适当形式填空：( )bedroom is nice and ciean.所给单词：Lily and Lucy -Is this the place ____ you visited last year?( ) --when --which --where --in which that is the day ( ) I'll never forget.A.which B.on which c.in which D.when 英语翻译Bob is mom is mad.His room is mess!She says,Ciean your roon!Bob puts his toys under his bed.Bob puts his books under his bed.He says,My room is ciean now. which,in which,on which,for which ,of which 有什么区别,在定语从句中怎么用?如：That is the day ( ) I'll never forget.A.which B.on which C.in which D.when which,in which,on which,for which ,of which 有什么区别,在定语从句中怎么用?如：That is the day ( ) I'll never forget.A.which B.on which C.in which D.when 选什么? which is black when you buy it,red when you use it,and gray when you throw it away?猜一猜: