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It’s very kind _____you to help me with my lessons. It is hard ____ me to learn them well .
A．of, forB．of, ofC．for, ofD．for, for
A   
It‘s adj of sb to do sth，表示對于某人評價的，It’s adj for sb to do
sth，表示對于某人而言，做某事是怎樣的，故選答案為A
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