The mayor of Beijing says that all construction work for the Beijing Olympics _____ by 2006.

A．has been completed

B．has completed

C．will have been completed

D．will have completed

甲、乙、丙、丁四个小朋友玩报数游戏，从1起按下面顺序进行：甲报1，乙报2，丙报3，丁报4，丙报5，乙报6，甲报7，乙报8，丙报9……这样，报1988这个数的是谁

A．甲

B．乙

C．丙

D．丁