Tax registration 税务登记

A:My company is a foreign investment group, and I would like to make tax registration. 我们是一家外国投资集团公司，我们要进行税务登记。
B:No problem. Could you please pass me your business license? 没问题啊。请出示一下营业执照。
A:Sure, here it is. 好的，请看。
B:First I have a question, in what field or fields is your company engaged? 首先请回答我一个问题。贵公司是从事哪些领域的？
A:Our enterprise is engaged in advertising field is your company engaged? 我们公司是从事广告方面的业务。这和税务登记有什么关系吗？
B:Please fill out this Registration Form over there, the green one. 请填写一下那边的表格，那个绿色的。
A: Excuse me; I have done with the form. What should I do next? 打扰一下，我已经填写完这份表格了，接下来我要怎么做呢？
B: Go to the next window with this registration form and the staff members there will tell you what other materials you will have to hand in. 带着这份表格到下一个窗口，那里的工作人员会告诉你还需要提供哪些材料。
A: OK, thank you. By the way, how much fee should I pay for the registration? 好的，非常感谢。对了，顺便问一下，税务登记需要交多少钱？
B: It's free of charge. 是免费的。

“be engaged in”意思是“忙于，从事于”，例如：Can the import-export company be engaged in domestic business? 进出口公司可以做国内贸易吗？