( )his telephone number, she didn't know how to get in touch with him.
A.正确答案AHaving forgotten
B.To have forgotten
C.Forgetting
D.To forget
( )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.
A.正确答案AHaving forgotten
B.To have forgotten
C.Forgetting
D.To forget