题目内容
It is 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
A
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题目内容
It is 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
A