it is an oranre pen为什么用an而不用a

it is an oranre pen为什么用an而不用a it is an oranre pen为什么用an而不用a What's this?——___.(①It's a pen.②This is pen.③This is an pen.④It's a pen.) This is an English pen It is pen复数.和this is an eraser复数.还有he isboy复数 It is a pen.It is (19)pen. What ________in my pencil-box?There is a pencil,a pen and an easer in it. is this( )Japanese pen?yes,it is this is pen,it 's englishthis is pen,it 's english pen It is _____. A.pen B.my a pen C.a my pen D.my pen 1.This is an ad.It is about pen pal _______(want).2.翻译我向做你的笔友. _____ pen is blue.It's _________ blue pen. Whose pen is it?同义句Who_ _ pen? this is () pen,but it's ()broken pen this is( )my pen.it's( )pen.( )里填空 填空：-it green? It is an orange orange?(变成一般疑问句) — — an orange orange?this is a good pen.(变成否定句)this—a good pen 将What is the English for that.传换为（ ）that( )( )一空一词.Thank you!It is her pen.传变为否定句It( )( )pen.一空一词。 (改为一般疑问句并用yes or no句型进行回答) It is a pen.That is a(改为一般疑问句并用yes or no句型进行回答)It is a pen.That is an orange.