it is a pen?对“a pen"提问_____ _____ that?

It is _____. A.pen B.my a pen C.a my pen D.my pen It is a pen.It is (19)pen. It is a pen .(对划线部分提问`划线部分是:a pen) it is a pen?对“a pen提问_____ _____ that? there is a pen 对a 提问 it is a pen(改为一般疑问句) is this a pen?No it i(). Is it a pen?改为肯定句 It is a pen in English.对a pen 划线提问,用What is this in English? He has some eggs for breakfast 对 some eggs提问 It is a blue pen 对a blue pen 提问 that is a pen what is that in English?是It is a pen还是This si a pen还是That is a pen Do you know( A.is it whose pen B.whose pen is it C.whose pen it is D.it is whose pen偶还米有学. This is my a pen?对还是This is a my pen?对This is my pen？ Is it a pen 改为陈述句Is it a pen 改为陈述句 it is a pen ,isn't it ? ____ ,it is pen What is this 是This is a pen.还是.It is a pen?为什么? She asked me if I knew?A、whose pen is it B、whose pen it was C、whose pen it is D、whose pen was it