He to swim across the Channel but they failed because of the terrible weather. A. succeed

问题补充：

He to swim across the Channel, but they failed because of the terrible weather.

A. succeeded

B. managed

C. attempted

D. thought

答案：

A. succeeded

B. managed

(答案→)C. attempted

D. thought

解析：attempt指试图做某事，不一定做成。句意为: 他试图游过海峡, 但由于天气失败了。manage指经过困难而“设法对付”含有达到目的之意。succeed和 think的结构分别为： succeed in doing sth , think sb to be…，后面够不能接不定式。