He was employed by the company because ..........................

* Hướng dẫn giải

Dẫn chứng: David got his job with the Liverpool-based company four months ago, a year  after leaving school with six O-levels and working for a time in a computer shop. "I got the job because the people who run the firm knew I had already written some programs," he said.

Đáp án đúng: B. he had written some computer programs.