我发现的问题如下：
1. 你的从句的时态跟你主句的时态是不一致的.
2. 不是 choise,而是 choice
3. 我觉得那句 how much time you need to complete it all 改成：how long you need to complete them all 比较好.
4. so that you can have some time do relax 应该是 to relax.
5. 落款应该是 yours,
XX
我发现的问题如下：
1. 你的从句的时态跟你主句的时态是不一致的.
2. 不是 choise,而是 choice
3. 我觉得那句 how much time you need to complete it all 改成：how long you need to complete them all 比较好.
4. so that you can have some time do relax 应该是 to relax.
5. 落款应该是 yours,
XX