It is very kind _____ you to help me with my lessons because it is very difficult _____me to learn t...
2022-10-06 07:38:11 18次 牛津译林版7上Unit 7 Shopping Welcome to the unit 提优训练 单选题 反馈错误 加入收藏 正确率 : 100%
题目内容：
It is very kind _____ you to help me with my lessons because it is very difficult _____me to learn them well.
A. of； for B. of； of C. for；of D. for； for
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