See you later, Jenny. I'm glad _____ with you for six months.
A、to work
B、to be working
C、to have worked
D、to having been working
【正确答案】：C
【题目解析】：be glad to do sth 做某事很开心根据for six months , 可判断此处为现在完成时，因此C 正确I'm glad to have worked with you for six months.
