What is this?提问为什么要用“It is”回答呢?可以用this is 回答吗

What is this?提问为什么要用“It is”回答呢?可以用this is 回答吗 What is this in english?为什么要用What is how is this word pronounce?为什么用is提问 it is an ice cream.(用what提问）回答what is this?还是what is it? This is a book.对book 提问时what is it 对,还是what is this? Is this your teacher?teather意为教师,老师.名词词性,为什么用Is this提问 It's(an orange)提问是What is this? what is this?可以写成 what's this?为什么? This _blue_ cap is mine . 提问 用blue提问 What does your father look like? 同义句 为什么用Is this提问,却用it is回答呢 It is a pen in English.对a pen 划线提问,用What is this in English? This is the most complete picture we have of what a predatory dinosaur lineage . 为什么要用what? is this what you intended to accomplish with your career?求分析这个句子.为什么要用what 不用that What is this?和What is that?的回答是不是回答用It?为什么不能用this和that呢? This is my book用whose提问 this bag is green.用green提问 为什么有些英语句子如Is this your father?要用Yes ,it is.而一些提问要用Yes,she is. There is a newspaper on the desk.用What提问为什么不是What is it on the desk?