— Peter didn't come to the meeting this morning.

—I _____ him yesterday, but I was too busy and forgot it. [ ]

A. should tell

B. should have told

C. had to tell

D. had told

统一训练标准是指严格贯彻落实《公安机关人民警察训练条令》，全面实施公安民警( )的“三个必训”制度。

A．上岗和首任必训
B．调任和轮换必训
C．职务和警衔晋升必训
D．基层和一线民警每年实战必训