that the government can lead them out of the finacial crisis people are optimistic about

问题补充：

that the government can lead them out of the finacial crisis, people are optimistic about the future of the country.

A. Convincing

B. Convinced

C. To convince

D. Having convinced

答案：

A. Convincing

(答案→)B. Convinced

C. To convince

D. Having convinced

解析：考查形容词做状语，Convincing令人信服的，convinced相信的，be convincedthat相信…，CD项不对，因为convince是及物动词，句意：相信政府可以把他们带出经济危机，人们对国家的未来很乐观。选B。