It rained so heavily yesterday that we couldn't have a picnic.(同义句转换)

问题描述:

It rained so heavily yesterday that we couldn't have a picnic.(同义句转换)
It rained _____heavily for us ______have picnic.

too、to.too…to…固定搭配(表示太…以致不能…)在本句的意思就是昨天的雨下得太大了以致我们不能去野营.