Will you go to her birthday party?- Of course I will if .A. having invitedB. invite

问题补充：

--- Will you go to her birthday party?

--- Of course I will if .

A. having invited

B. invited

C. she inviting

D. I invite

答案：

A. having invited

(答案→)B. invited

C. she inviting

D. I invite

解析：考查省略句。句意：你会参加他的生日聚会吗？——当然会了，如果被邀请的话。我是被邀请的对象，下文条件句中省略I am，invited为被动结构。故选B。