it is an ice cream.(用what提问）回答what is this?还是what is it?

it is an ice cream.(用what提问）回答what is this?还是what is it? What is it还是What is this （）fun it is to have ice cream in hot summer!填what还是how 为什么? What is this怎么回答,是It is+a/an what is this 回答 与what is that 回答用It's 还是this is and that is哪 This is a book.对book 提问时what is it 对,还是what is this? It's(an orange)提问是What is this? what is this?-It is. What is this?It is 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 E.It is an o. 1.A:What would you like?B:A ice-cream,please.____ ___ is it?