Since Dec 2009, I have left U.S three times and each time for one month every year.
It would appear so. Your may have some problems with your continuous residence though. Consult an immigration lawyer to ascertain whether or not you have abandonment issues.
The answer provided is general in nature and should not be construed as legal advice as not all facts are know by the attorney, nor does the answering of this question create an attorney client relationship.
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