my situation
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tps & work permit approved for 2015, re-registering 2016

Question

#10 - what is Form i94 number, is it same part 2 (25a) of i821 ( arrival departure form)

#11 -have you applied for employment authorization ?
do we say yes or no? I put no last time
if yes, what do we put for "which uscis office /dates"
I have not idea which uscis office ???
does being approved work permit make it automatically yes?

I guess # 17 & #18 are blank ...