George Ernest Morrison, an Australian, tra

问题单项选择题

George Ernest Morrison, an Australian, traveled the "five-foot roads," or foot paths, from Shanghai to Rangoon in 1894, ______ China before it was engulfed in a century of revolution, war and political tumult.

A．witness

B．witnessed

C．witnessing

D．to witness

答案

参考答案：C

解析：[分析] 结构识别本句考察的是用动词不定式、现在分词短语还是过去分词短语作状语：动词不定式表示还没有做的事，现在分词表做过的事，现在分词含有主动的意思，而过去分词形式含有被动的含义；此句要表达的是George Ernest Morrison已做过的事，且表主动，因此C为答案。