I really don't know I can ____ thank you enough.A.hardly B.luckily C.possibly D.especially

I really don't know I can ____ thank you enough.A.hardly B.luckily C.possibly D.especially
I really don't know I can ____ thank you enough.A.hardly B.luckily C.possibly D.especially

I really don't know I can ____ thank you enough.A.hardly B.luckily C.possibly D.especially
选 C
翻译:我真的不知道这样是否足以表达我对你的感谢.

题目没错？
C

肯定是C.