She refused to answer any questions.

She refused to answer any questions.
She did not ask any questions.
用not only but as well 连接.
1.She not only refused to answer any questions but did not ask any questions as well.
2.She not only refused to answer any questions but she did not ask any questions as well.
以上两个句子哪个正确?是两边成分要一样吗?如果第二个是正确的话为什么是正确的?用not only but as well 连接句子的规律是什么?
另外:
She is not only good at mathematics,but she is interested in English as well.
两边成分明显不同,为什么是正确的?
另外：She liked eating food.She did not like talking about it.用but连接。
1.She liked eating food but did not like talking about it.
2.She liked eating food but she did not like talking about it.
哪个对?