Not until he called the secretary three times ______ that the manager went to an important meeting. [ ]

A. did he tell    

B. he told          

C. was he told      

D. he was told

Under international rules（）.

A.all vessels must carry an after range light

B.vessels less than 50 meters in length need not carry an after range light

C.vessels stopped dead in the water should turn off their range lights

D.vessels over 20 meters in length must carry both range lights from sunset to sunrise