The old man sitting opposite me cleared his throat as if________something.[      ]

A. said  

B. to say

C. having said  

D. saying

红军长征胜利结束的标志是（）。

A.中央红军到达陕北吴起镇

B.中央红军与红四方面军会师

C.红一、二、四方面军在甘肃会宁、静宁将台堡会师

D.中央红军翻越夹金山