At the Qiantang River on September 24th last year, the tidal bore, a name for a large column of water produced by the tide, as high as 1．9 metres, the start of the autumn flood period of the liver．
A. reaching marking
B. reached; to mark
C. reaching; to mark
D. reached; marking
网友回答
A. reaching marking
B. reached; to mark
(答案→)C. reaching; to mark
D. reached; marking
解析：考查时态和伴随状语，因为句子时态是一般过去式，所以是reached，动名词表示伴随的一种动作，所以是marking，句子意思“在去年的9月24号钱塘水，潮水穿孔，由于潮水产生大量的水，水位高达1.9米，标志着秋季洪水开始了”，所以选C