“How long have you been in this job?” she asked him.Đoạn văn35/40“How long have you been in this job?” she asked him.She asked him how long he has been in that job.She asked him how long has he been in that job.She asked him how long he had been in that job.She asked him how long had he been in that job.Giải thíchChọn đáp án C