Question

选择题Is it his pencil？答语： A.Yes，that is B.No，that is not C.Yes，it is D.No，it is not

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Answer 1

答：你这题就不好，一般第二次提到同一事物时才用it! 你前面还一句：
What's that? Is it his pencil?
才有回答：Yes, it is. /No, it isn't.(/it is not.)
如就两句对话，应该是：
--Is that/this his pencil?
-- Yes, it is. (/No, it isn't/ is not).

你这是小学老师，而且是菜鸟级的小学老师出的题吧？
如果如我最早所说，有问到：那是什么？接下来再问：Is it his pencil? 是他的铅笔吗？
如果回答，CD都是正确的。
对了，突然就来个his也是不妥的。所以独立成题的对话是；
Is that Tom's pencil?
Yes, it is .
或:No, it isn't.
或：No, it is not.
有人说，否定回答只能用缩略式，这是不正确的。下面的完全可以。
一般问句如我给的那样，用this或that作主语。受汉语影响，初学者往往会回答：Yes, that is. /No, that isn't.
四个选项是：A. Yes, it is. B. Yes, it's. C. Yes, that is. B. No, that isn't.

Answer 2

C
首先 提问时Is it 回答必须是 it is 或 It isn't。 否定回答的时候 is和not 必须缩写为 isn't。希望能帮到你，谢谢。

Answer 3

选C。Is it /that/this...？都习惯用it 来回答。
另外不选D的原因是简短回答时习惯用No , it isn't. 相反肯定回答不用yes, it's.

Answer 4

C
Is it一般疑问句的问答时也要用it is。所以不能选AB
D is not 要缩写。

Answer 5

C .问题和答语中的指代要一直，前面用it 后面就也是it 肯定句 前后保持一直。