It＇s her skirt.(变为复数句)

It＇s her skirt.(变为复数句) lt's her skirt(变为复数句) It's her skirt变复数 It,s a knife 变为复数形式 It's a knife 变为复数形式 what's this?it's a cat变为复数句 It（变为复数） It' s an English car(变为复数句） Is it teacher's book?变为复数句 It's a calculator改为复数形式It's a pen.It's my key.That's a clock.It's her book都改成复数形式 It is a yellow skirt .怎样变复数? It's my pencil case.和She's her mother's good daughter.改为复数句. What color is the woman's skirt?(改为复数形式) That is her sister.(变为复数句) - - her - it's的复数 it's(复数) they are teacher.变为否定句第二个问题：it‘s an English car 变为复数第三个问题：that shirt is white 变复数 It is a watch.变为复数句