It was bad weather they all had to stay at home.
A. such a, that
B. such; that
C. so; that
D. so; to
网友回答
A. such a, that
(答案→)B. such; that
C. so; that
D. so; to
解析：such; that和so; that都表示如此……以至于，区别在于，such是形容词，修饰名词，意思是如此的这样的；so是副词，修饰形容词，副词，意思是如此这样。句意：这是如此糟糕的天气，以至于他们都不得不呆在家。bad weather中心词是名词weather，故选B。