He went to see the man who was in hospital yesterday.A. So did weB. So we didC.

问题补充：

--- He went to see the man who was in hospital yesterday. --- .

A. So did we

B. So we did

C. We did so

D. Did so we

答案：

(答案→)A. So did we

B. So we did

C. We did so

D. Did so we

解析：根据题干中的he和答语中的we可知，本句应该是倒装句，本句的意思是“我们也去了。”所以应该排除BCD。