–Jim went swimming with his parents yesterday afternoon. – .
A. So Mary did
B. So Mary does
C. So Mary was
D. So did Mary
网友回答
A. So Mary did
B. So Mary does
C. So Mary was
(答案→)D. So did Mary
解析：句意：昨天吉姆和他的父母去游泳了。——玛丽去了。“so＋助动词（情态动词或连系动词）＋另一主语”，表示前面的情况也适用于后者。故选D。