We were finally able to make the customers _______ of the quality of the refrigerator.
问题描述：
We were finally able to make the customers _______ of the quality of the refrigerator.
A. to convinceB. convincingC. convinceD. convinced
为什么不是 make sb do看不出哪里有被动关系啊
选D
答
这里的convinced of...是做the customers的宾语补足语,表示使得顾客相信...