It's difficult for him to tell the difference between true prais

It's difficult for him to tell the difference between true praise and flattering statements making only to gain his favor.
【正确答案】：making改为made。
【题目解析】：句意：对他来说，区分真正的赞美和只是为了得到他的好感而说的奉承话是很困难的。flattering statements made to gain his favor意为为得到好感而说的奉承话，应该用被动，故用made。