8老师你好，我明天公民宣誓，宣誓完我是不是就拿到Naturalization/Citizenship Certificate？我要等到办好护照才能给我妈妈申请绿卡？
根据这篇文章，http://bbs.wenxuecity.com/immigration/594792.html
我需要准备：
Sponsor Documents:
1. Copy of Naturalization/Citizenship Certificate.
2. Copy of the US passport.
3. Copy of sponsor’s birth certificate.
4. Financial documents, proof of income (last few salary stubs), last few tax returns, proof of employment (W2 forms), letter of employment, bank statements, savings, 401K certificate, and other documents demonstrating your financial strength.
必须要护照复印件吗？那我是不是要先办好护照呢？
谢谢8老师！