We’re looking forward the photo exhibition.A. to visitingB. to visitC. to having visitedD

问题补充：

We’re looking forward the photo exhibition.

A. to visiting

B. to visit

C. to having visited

D. visiting

答案：

(答案→)A. to visiting

B. to visit

C. to having visited

D. visiting

解析：考察短语look forward to的用法。这个短语后面一般接动名词表示期望做某事。故选A。我们期望参观照片展。