After he had won the first prize Mr. Su to a restaurant to celebrate with us.A. wentB. h

问题补充：

After he had won the first prize, Mr. Su to a restaurant to celebrate with us.

A. went

B. has gone

C. would go

D. had gone

答案：

(答案→)A. went

B. has gone

C. would go

D. had gone

解析：获奖的动作先发生，所以用了过去完成；“去饭店”是他之后发生的动作，所以用一般过去时。