问题描述：
语法分析I can't ensure his being on time.
I can't ensure his being on time.这句话为什么要用being?请达人整个句子帮我分析下
I can't ensure his being on time.这句话为什么要用being?请达人整个句子帮我分析下
问题解答：
我来补答展开全文阅读