同学你好，该知识点来自沪江网校《英语零基础直达大学四级【随到随学班】》的课程，想要更系统的学习，欢迎进入课程学习。不仅可以和更多的同学一起学习，而且还有老师、助教随时的学习指导和知识点解答哦。

同学好，
1. 同学的翻译没问题，也可以用非限制性定语从句来表达：My grandfather's clavichord was damaged by my brother, which made my grandfather very angry.
2. 在家是“be at home”，两个并列的分句需要连词连接。另外后面一个句子第一个字母要大写：Captain Jim wasn't at home, because he sailed. He will be back next week.
3. 一般现在时第三人称单数做主语谓语动词要有变化，另外后面直接用gather就可以了：The shop opens from 9 a.m. to 9 p.m. It gathers plenty of goods every day.
4. 足球比赛：football game，两个并列的分句需要连词连接。You will take part in the football game next month, and we are proud of you.
5. 一般现在时第三人称单数做主语谓语动词要有变化，后半句没问题：He gets a good salary...

网校提倡一题一问，建议同学每道题针对一个问题进行提问哈~~~十分感谢同学的理解和支持！

祝进步~~