Bob often read books on sundays 有什么错误?
问题描述：
Bob often read books on sundays 有什么错误?
答
read要加s，单三
Sunday是专有名词，不用加s
答
Bob often reads books on sundays
答
动词忘了使用第三人称单数形式
正确的句子应该是：
Bob often reads books on Sundays
答
Reads sunday