（ ）his telephone number, she didn't know how to get in touch with him.
A、
Having forgotten
B、
To have forgotten
C、
Forgetting
D、
To forget
【正确答案】：A
【题目解析】：
本题考查非谓语动词。
forget与其逻辑主语she之间是主动关系，forget的动作发生于主句动作之前，所以用完成时态。所以本题选A。
句意：她忘了他的电话号码，不知道怎么和他联系。
（ ）his telephone number, she didn't know how to get in touch with him.
（ ）his telephone number, she didn't know how to get in touch with him.
Having forgotten
To have forgotten
Forgetting
To forget
本题考查非谓语动词。
forget与其逻辑主语she之间是主动关系，forget的动作发生于主句动作之前，所以用完成时态。所以本题选A。
句意：她忘了他的电话号码，不知道怎么和他联系。