It had been raining three days before we arrived, so we might as well at home.
A. stay
B. to stay
C. have stayed
D. to have stayed
网友回答
(答案→)A. stay
B. to stay
C. have stayed
D. to have stayed
解析：考查短语：might as well do 不妨做某事，句意：在我们到达之前已经下了三天的雨了，因此我们不妨呆在家里吧。所以选A。