The old professor travelled from one school to another first-hand information about the

问题补充：

The old professor travelled from one school to another, first-hand information about the education situation in China.

A. to gather

B. collecting

C. getting together

D. to get together

答案：

A. to gather

(答案→)B. collecting

C. getting together

D. to get together

解析：考查分词做状语用法。本题中的动词collect与句子主语The old professor之间构成主动关系，故使用现在分词在句中做伴随状语。句意：那个老教师到每一个学校去调查，收集第一手的关于中国教育现状的信息。故B正确。