He's going to see his uncle tomorrow.

问题描述:

He's going to see his uncle tomorrow.
(改为否定句)He () () to see his uncle tomorrow.

很简单
1.isn't
2.going
原因:这样的题目可以把isn't,doesn't,didn't等算成一个单词(一个空),不用想的太多呵呵,简单点好