Chinese proofreading

There are 4 erros in the following paragraph written by a Chinese learner. Can you find and revise them? Most of the erros are related to English expression habits.

“个种学生的水平都不一样,也他们的要求可能也不一样,就给他们提供个人的适合他们的要求的培训就不容易。
比如说我,我需要的是说多汉语 ……”