请英语高手来帮我看看下面这些句子有没有错误，或者可以改进的地方吗？

你的句子都比较流畅，稍微有点小语病。修改如下：
3. Are you good at English? Which part are you good at, speaking, reading, writing or the other else?
4. Do you think you have problems in studing English in Grade Eight?/
Do you think you are hard-working in studing English in Grade Eight?
7.If you work hard, how many points do you expect to get in the final test this term?
8. What's your father's name? What job does he do? Where is he working?
(你遗漏了问题9还是标错了序号)
10. What's your mother's name? What job does she do? Where is she working?
12.What do you think if your teacher asks you to review English for twenty minutes after finishing homework every day?

希望能够帮助你！