8老師您好！
我是美國公民。我父母在中國申請綠卡。我在www.ceac.state.gov上上交了背景材料。但是網站上說
“You MUST bring all of your original documents (not a photocopy) to your interview at the U.S. Embassy or Consulate.“
問題是，這個很多的材料是很重要的，比如說我的護照證明我的國籍，但是我不能把護照郵寄回中國吧？一是怕弄丟了，二是我也需要用這個護照。 想請教一下您這個怎麽辦。
--That kind of documents means your parents's birth certificates, their marriage certificates, your tax return and W2, I-864 signed by you, your birth certificate, etc., not need to provide your original your US citizen certificate or passport which has been verified by USCIS when they approved your I-130.
