我妈对我说晚饭应该尽量少吃肉.

try to

我妈对我说晚饭应该尽量少吃肉.
My mother said I should__ __eat less meat for dinner
填 try to
第一，should 为情态动词，后面要跟动词原形，楼上有人填的have to也是情态动词，情态动词不能接另外一个情态动词。
第二，try to do something 表示尽力做某事，要与try doing something区分开来，后者为尝试做某事；
本题的考点应为区分try to do something 和try doing something。

try to , this is best answer of ther question!!

My mother said I should_have_ to__eat less meat for dinner

是不是try to

have to