We would have gone fishing yesterday but it heavily.A. rainedB. had rainedC. has rainedD

问题补充：

We would have gone fishing yesterday, but it heavily.

A. rained

B. had rained

C. has rained

D. would rain

答案：

(答案→)A. rained

B. had rained

C. has rained

D. would rain

解析：考察时态。句意：我们昨天要不就去钓鱼了，但是雨下的太大了。可知下文描述的是昨天发生的动作，故用过去时态，选A。