It’s quite impossible that it will rain tomorrow. But if it I would still go to the park

问题补充：

It’s quite impossible that it will rain tomorrow. But if it , I would still go to the park.

A. should rain

B. would rain

C. rains

D. had rained

答案：

(答案→)A. should rain

B. would rain

C. rains

D. had rained

解析：考查虚拟语气。考查与将来事实相反的虚拟语气，从句用should + V原形/过去时/were to + v原形。故选A。