I have two pens.one is black,and （ ）is red

I have two pens .One is red ,（ ）is black . I have two pens.one is black,and （ ）is red I have two pens,one is red,____ two are black. the other I have three pens.One is red,_____ two are black. I have two pens.One is black,_____is blue. I have two colousr pencils：one is red,and the other is blue Nancy has two new pens.One is red,______is blue. 选择并抄写单词.I have six color pens.One is red,another is yellow a i have two skirt .one is yellow,_______is black. ()Tom has two schoolbags.One is black,and __ is red.​ I have two pencils.One is green,and___is red. I have four pencils.One is red,______ three are black.