We walked a long way to see him off only that he had just left.A. foundB. to find C. fi

问题补充：

We walked a long way to see him off, only that he had just left.

A. found

B. to find

C. finding

D. having found

答案：

A. found

(答案→)B. to find

C. finding

D. having found

解析：考查不定式做状语。不定式做状语，表示意料之外的结果；现在分词做状语，表示意料之中的结果。句意：我们走了很远的路去为他送行，结果却发现你已经离开了。表示意料之外的结果。