Tax Return - 海外工作

Sorry I cannot type in Chinese.
My friend and I went to file our tax on 3/11.
The CPA told us we will have Fed. Tax return in 10 days.
My friend got it on 3/20 but I still do not get anything.
CPA told me I can check with IRA.gov but I dont know how to check the status.

Does it take so long because I got randomly auditted and I need to prepare
more document or it always takes longer? (my friend was shocked she got it in
10 days) The only difference between my friend and I is I have OPT and H1
stauts and she only has OPT and my income is a bit higher than hers.
(CPA told me I can get $3,000 back)

Can anybody answer my question??

Thanks!

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