This book is （——）orange.It‘s（——）orange book.有四个选项,分别是/ ,a /,

This book is （——）orange.It‘s（——）orange book.有四个选项,分别是/ ,a /, （单数句子变成复数） 1.This is a map.2.That's an orange orange.3.—What 用a,an填空.1.This is( )book.2.That is（ ）orange.3.It is ( ) Engl This is a orange.It’s an orange.是否正确. This is a orange book.填a对不对 填空：-it green? It is an orange orange?(变成一般疑问句) — — an orange 一道英语选择题：What's this?选项是：A:This is a book.B:It's a book.哪个选项更 This is a ( ).The orange is in it is orange. Is this（）book?No,it's（）book. 1.What's this? It"s（）orange. It's（）orange A.an,an B.an,/ C./ This is a big book.It is Ben's book.(两句合并成一句） It's(an orange)提问是What is this?