英语完形填空（Sam and Mike worked in the same office and they were ）

英语完形填空（Sam and Mike worked in the same office and they were ）
英语完形填空（Sam and Mike worked in the same office and they were ）

英语完形填空（Sam and Mike worked in the same office and they were ）
colleague
同事

colleague，co-worker or workmate

colleagues