It's a pen .(用a pen 改为选择疑问句）Three and six is nine.(划线部分提问）划线是nineIt's a pen .(用a pen 改为选择疑问句）( ) it a pen ( ) a pencil?

单项选择 It's--------.A.pen B.his a pen C.his pen D.a his pen It's a pen .(用a pen 改为选择疑问句）Three and six is nine.(划线部分提问）划线是nineIt's a pen .(用a pen 改为选择疑问句）( ) it a pen ( ) a pencil? -____ ____?-It`s a black pen It's a pen改成否定句 what's in the pencilbox?回答时用There is a pen.还是 It's a pen.并解释为什么. what's this in english a.It's pen b.It'sa pen c.I like pen 选哪个为什么? What's this?——___.(①It's a pen.②This is pen.③This is an pen.④It's a pen.) 是It isn't a pen.还是It's not a pen. 是It isn't a pen.还是It's not a pen. It is _____. A.pen B.my a pen C.a my pen D.my pen What's this?It's a pen.(改为复数句) what color is this pen的回答可不可以是It's a red pen It is a pen.It is (19)pen. It's a pen in English.(改为疑问句) It's a pen in English什么意思 what's this?It's a pen.为什么不能说是this is a pen.我们老师说就是不能说this is a pen.为什么 what's this in English?It's a pen.为什么不能说是this is a pen.?详细!this is 在哪能用?二者的区别是什么?谢谢啊! ——Is it your pen ——No,it's ( ) pen.A.myB.meC.hersD.your