His grandpa died last year.(be dead)

题目

His grandpa died last year.(be dead)

答案

应该是His grandpa was dead last year.
dead是“死”的形容词形式,die则是“死”的动词形式.be dead = die
句子意思：他的祖父去年去世了.“去世”发生在去年,所以用过去式,变be为was 即可