The applicant or beneficiary, or his representative, must be given an opportunity to -
(a) Examine at a reasonable time before the date of the hearing and during the hearing:
(1) The content of the applicant's or beneficiary's case file; and
(2) All documents and records to be used by the State or local agency or the skilled nursing facility or nursing facility at the hearing;
(b) Bring witnesses;
(c) Establish all pertinent facts and circumstances;
(d) Present an argument without undue interference; and
(e) Question or refute any testimony or evidence, including opportunity to confront and cross-examine adverse witnesses.