问题补充:
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
答案:
(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。