I mistake him for my classmate.

我误认为他是我的同学。

My classmate helped me finish my homework.

我的同学帮我完成了作业。

I will ask my classmate about this question.

这个问题我会问我的同学。

Last Sunday my classmate, Lin Hao and I went to a bookstore.

上星期天，我和我的同学林昊去了书店。

I had a bosom friend who was my classmate in the university.

大学时，我有个知心朋友，我的同学。

My classmate has already started his internship in a law office.

我的同学现在已经在律师事务所实习了.

One day, my classmate brought a box of cream cake for his birthday.

一天，我的同学为他的生日买了一盒奶油蛋糕。

Every my classmate said busy and we had a reunion until Thursday night.

我的同学说，每一个繁忙，我们有一个直到周四晚上团聚。

Of course, I felt very cold in deep night, so to my instinct, I crashed into my classmate's blanket.

当然，我感到非常冷，深夜，所以我的本能，我坠入我的同学的毛毯。

Sometimes I use it surf the Net, sometimes I use it E-mail with my classmate each other.

有时我使用它上网，有时用它与我的同学发电子邮件。