Premier Wen advocated school bus safety .
A. be guaranteed
B. guaranteeing
C. should guarantee
D. must be guaranteed
网友回答
(答案→)A. be guaranteed
B. guaranteeing
C. should guarantee
D. must be guaranteed
解析:考查虚拟语气。句意“温总理倡议保证校车安全。”advocate后的宾语从句用(should) do sth.,safety和guarante之间是动宾关系,故用被动。故选A。