被ref了，除了雇主证明，还要如下文件：
“Submit evidende of your employment authorization in the U.S. from September 2, 2009 to September 12, 2010. Such evidence may include copies of:
Employment Authorization Documents (Forms I-688 or I-766) granted to you by this Service;
Form I-797 approval notice, showing you were granted status in an employment-authorized nonimmigrant classification; and/or
Copies of Form I-94 Arrival/Departure Records showing you were admitted to the U.S.in an employment-authorized nonimmigrant status.
1. 我当初进美国是F-1，以后虽转为H-1,但一直没有离开过美国，所以并没有H-1的入境纪录。在H-1批准的那张纸下面印有一个H-1的i-94表。请问给移民局这张表可以吗？还是应该连F-1的i-94也一起给了？
2. 不明白移民局为什么要我三年前的工卡和六年前I-140的批准信而不要当前的材料。请问移民局以后还会跟我要别的材料吗（我的排期当前）？我该不该把现在的工资单和税表也一起交了，省得过后再跟我要材料。
多谢！