Tom _ _ _ _ _his good friend 汤姆正和他的好友吵架（有5空）
问题描述：
Tom _ _ _ _ _his good friend 汤姆正和他的好友吵架（有5空）
You - - a ticket to a ball game- him你可以买一张球票给他（有3空）
答
Tom is having a quarrel with his good friend
You could bought- - a ticket to a ball game- for himcould不是情态动词吗，那不是后面要加原形，为什么加buy的过去式呢？不好意思 ，打错了，应该是 You can buy- - a ticket to a ball game- for him 情态动词要加原型的那那个for him 不能是to him吗？一般都用buy...for.. sb