Have you finished all the work?

这是英语的习惯,yes,no后面一般不跟nothing
如果是问你what are u doing,倒是可以回答nothing special.

nothing只能单独使用，后面不跟of短语

none常用作简略答语，一般情况下，none回答how many或how much问句，可以跟of短语

例：
None of them can speak Japanese.

①—What’s in the box ? 盒子里有什么？

— Nothing. 什么也没有。

②—How many people are there in the park? 公园里有多少人？

—None.没有人。
相信LZ从这上面能看明白的！

选A
None和Nothing的区别:
none
1)可与of连用；2)谓语动词用单或复数；3)具体指什么人或物；4)一般用来回答how many +n,how
much +n及含any+n引起的疑问句。请看：
1)None of us have/has seen him.
2)——How many students are there in the room? ——None.
3)——Is there any water in the thermos? ——None.
4)——How much money do you have on you? ——None.
nothing
1)指物；2)谓语用单数；3)一般用来回答含anything的一般问句及what引起的特殊问句。请看：
1)——What is in the box? ——Nothing.
2)——Is there anything in the sky? ——Nothing.
3)——Can you see anything without glasses? ——Nothing.”
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