—Have you ever been to Washington?---Yes shall I forget it for the first time.A. however

问题补充：

—Have you ever been to Washington?

---Yes, shall I forget it for the first time.

A. however; visiting

B. never;visiting

C. never;to visit

D. forever; to have visited

答案：

A. however; visiting

(答案→)B. never;visiting

C. never;to visit

D. forever; to have visited

解析：由shall I和句末不是问句可知是部分倒装，句首应当是否定词，排除选项A和D。从yes及后面的for the first time可知，visit这个动作已经发生。忘记做过的事，forget后接动词的-ing形式。