I really appreciate ________ a great effort to come to help me with the problem．

A.your making

B.you to make

C.you to make

D.your being made

答案及解析： A

解析：

句意是“对于你帮助我解决这个问题所作出的努力我真得十分感激”。appreciate后面接动名词短语作宾语。此处表主动意义，故选A项。后面只能接动名词作宾语的动词有mind，miss，enjoy，give up，admit，finish，escape，practise，avoid，keep，suggest，imagine，can’t help等。