【青青草原的智羊羊】評論
We all stayed at home _______ the bad weather.(A) by + ing(B) because of + 名詞,我們都因為壞天氣待在家。(C) so ,我們都待在家,所以天氣不好。語意不通。(D) when,若改成when the weather is bad就可以選。