All of sudden someone shouted “It is time to put end to the meeting.”A. a;anB. a; /C. /

问题补充：

All of sudden someone shouted, “It is time to put end to the meeting.”

A. a;an

B. a; /

C. /; an

D. /; /

答案：

A. a;an

B. a; /

C. /; an

D. /; /

解析：考查固定搭配。All of a sudden,突然；put an end to…结束……。所以选A。