问题描述: he asked his mother that whether she knew what was going on then的错误是 1个回答 分类:英语 2014-11-07 问题解答: 我来补答 多一个that改成:He asked his mother whether she knew what was going on then.whether she knew what was going on then是个宾语从句,作谓语动词ask的宾语(直接宾语,表示问话内容),whether本身可以引导宾语从句,不需要重复使用关联词了 展开全文阅读