单项选择题
A.they are put in the envelope by mistake B.the boss wants to give him a test C.the boss wants to make him glad D.the boss wants to increase his wage
A.once a month B.twice a month C.once a week D.every five days
A.He goes to see the boss immediately. B.He gives the five pounds back to the boss. C.He puts the money secretly in his pocket. D.He says something about that to others.