我叫mary,我家有四口人,妈妈,弟弟和我.我爸爸是一名工人,我妈妈是一名教师.我是一名学生今年12岁.我弟弟只有五岁.

I am Mary。There are four people in my family。They are my father,my mother,my brother and I。My father is a worker。My mother is a teacher。I am 12 years old and I am a student。My brother is five,so he doesn't go to school。