Question

____the problem, it follows that we must develop a plan of action.

A．Recognizing

B．Having recognized

C．Recognized

D．Having recognizing

Answer 1

B

解析试题分析：句意：意识到了问题之后，紧接着的就是我们必须制定一个行动计划 。Having recognized强调动作在先。Recognizing表主动、进行，Recognized表被动、完成；没有D的形式。故选B。
考点: 考查非谓语动词的用法。