Question

It’s very kind _____you to help me with my lessons. It is hard ____ me to learn them well .

A．of, for

B．of, of

C．for, of

D．for, for

Answer 1

A   

It‘s adj of sb to do sth，表示对于某人评价的，It’s adj for sb to do
sth，表示对于某人而言，做某事是怎样的，故选答案为A