-It’s very nice______ you to help me with my English．

-Not at all．I think it is important______ us to help each other

A．of, of                  B．for，of          C．of，for           D．for，for

—It's very nice ________you to help me with my English.

—Not at all.I think it is important ________us to help each other.

　　　 　　 A.of; of　　 B.for; of　　 C.of; for　　　　　　 　D.for; for

It's very nice ___________ you to help me．

　　A．for　　B．of　　C．to　　D．with

 It’s very nice         you       me with the advice.

      A. for; to help       B. of; help     C. of; to help     D. for; helping