你的例句正确。

首先先“严重”更正昨日那提，nobody has no money, 后句应为
do they. "严重”对不起。。 ;-)

当前句是 nothing时，后面才用 it. 前句是 nobody时，后面用 they.

大致构成原则：

1。前句的谓语部分用的是系动词，后半句要用系动词。
2。前句用的是行为动词，后句用do，does，don't, doesn't,
did, 或 didn't.
3。前句用的是情态动词, 后句也用情态动词。
4。前句是完成时态，后句用have, has, had, haven't, hasn't, 或 hadn't。
5。 前句是祁使句，后句用 will, won't.
6. 前句是 there be句型，后句用is there, are there, isn't
there, aren't there, was there, were there, wasn't
there, weren't there.
7. 前句是 "there + 情态动词 + be" 句型，后句用 "情态动词
+ there".
8. 前句是 there be 的现在将来或过去将来时态，即 there
will be,there won't be,there would be, there
wouldn't be..., 后句用 will there, won't there,
would there, wouldn't there.
9. 两个特例词，前句中主语是 nothing, 后句用 it. 前句中主
语是 nobody, 后句用 they.

举几个例句：
Nothing can stop us, can it?
Nobody phoned, did they?
Don't forget to bring the key with you, will you?
There won't be any problem, will there?

It's such a "long" answer, isn't it? (哈，joking..;-)

供你参考。 ;-)