麻烦翻译几句谢谢！

1. When you ask me to speak English in class or speak Chinese
2. Always want to improve their English
3. If use English teaching, many schoolmates only half as half solution.
4. Hope can be combined with Chinese and English in class

1.Do you speak English in Class?
2.always want to improve my English
3.But if English is used as the medium of teaching, many of our students may not be able to fully understand
4.Hope to have a class that allow student to speak both English and Chinese