I really appreciate to help me with my maths, but I’m afraid that I have no time this week.
A. you to offer
B. it you offer
C. your offering
D. this you are offering
网友回答
A. you to offer
B. it you offer
(答案→)C. your offering
D. this you are offering
解析：考查非谓语。句义：我非常感激你在数学方面对我的帮助，但是恐怕这一周我没有时间。根据appreciate判定出：appreciate的宾语不能是人，排除A，appreciate it +if从句，排除B，D选项句型不对，根据appreciate + doing ，doing带上逻辑主语you/your,所以C正确。