1. What about usa file?

No Answer is Posted For this Question

2. If VO asks why your gre/toefl score are low?
what should i answer. my gre 910, toefl 68,BTECH 63% with 1 blacklog cleared later?

i got 990 in gre,94 in toefl, btech % is 68 with 6
backlogs... i got admission from 3 universities,
is there any chance to get reject?
what should be the ans for low gre score?

3. How does one who was brought into the country from Mexico at 2 months and now is 19 become a citizen , needs a drivers license?

if he is a permanent resident - has green card needs to
file application N-400 if not needs to apply for a green
card first get his status to legal resident

www.uscis.gov

4. How long does it usually take to get immigration visa or any other kind of visa for my Arab wife to come to the united states, seeing that i am an American citizen?

takes about a year and a half the most. but you should
visit www.uscis.gov and also give them a call and ask
questions. all applications take time to process.