下面关于thank或thanks的用法对吗？

1.Thank Teacher Liu for helping. I can pass the exam. 感谢刘老师的帮助，我可以通过考试

2.Thank Teacher Liu for helping me to answer the questions. I can pass the exam. 谢谢刘老师帮我回答问题，我能够通过了考试。

3.Thank Teacher Liu for helping to answer the questions. I can pass the exam. 谢谢刘老师帮助回答问题，我能通过了考试。

4.Thanks for helping. I can pass the exam. 谢谢你的帮助，我能通过考试。

5.Thanks for helping me to answer the questions. I can pass the exam. 谢谢你帮我回答问题，我能通过了考试

6.Thanks for helping to answer the questions. I can pass the exam. 谢谢你帮我回答问题，我能通过了考试。

7.Thanks to your help. I can pass the exam. 谢谢你的帮助，我能通过考试。

8.Thanks to your helping on answering my questions. I can pass the exam. 谢谢你帮我回答问题，我可以通过考试。

9.Thank you to your helping on answering my questions. I can pass the exam. 谢谢你帮我回答问题，我能通过考试。

10.Thank Teacher Liu for helping. 感谢刘老师的帮助。

11.Thank Teacher Liu for helping me to answer the questions. 谢谢刘老师帮我回答问题。

12.Thanks for helping. 感谢你的帮助。

13.Thanks to your help. 感谢你的帮助。

14.Thanks to your helping on answering my questions. 感谢你帮我回答问题。