The conservation area is very important for preserving many animals and plants which woul

问题补充：

The conservation area is very important for preserving many animals and plants, which would run the risk of becoming extinct.

A. otherwise

B. therefore

C. though

D. instead

答案：

(答案→)A. otherwise

B. therefore

C. though

D. instead

解析：考查副词：整句意思为“这些国家公园对保护多种动物都非常重要，而这些动物若不保护，将可能濒临灭亡。” ， A. otherwise“否则”，B. therefore“因此”，C. though然而D. instead“代替，反而”，选A。