问题
I am sorry.I have left my credit card home.And I don’t have enough cash for the meal.—Don’t worry. .
A:I’ll invite you
B:It’s my pleasure to pay you
C:It’s my treat DIt’s at your expense
D:It’s at your expense
B:It’s my pleasure to pay you
C:It’s my treat DIt’s at your expense
D:It’s at your expense
正确答案是：
