選出正確的答案: George and Mary friends before. However, after fighting, they are not friends now.
(A)were (B)weren't (C)was (D)wasn't
A 中文解釋: 喬治和瑪莉以前是朋友，然而，自從他們吵架之後，現在就不再是朋友了。 詳解: before是之前，表示過去，故要搭配過去式Be動詞。主詞(喬治和瑪莉)為複數，故複數過去式Be動詞為were。故選(A)