21. An interview is a talk between an employer and a potential employee so that _________ interviewer can assess the applicant and see if he or she is suitable for ______ position.
A. the , the B. an, a C. the, a D. an, the
22.All the Chinese were excited, because it was the first time that China_______her own aircraft carrier .
A. had B. has had C. had had D. has