阅读理解。

     My name is Jack Hill. My Chinese teacher is Li Yan. She is from Hangzhou. She has two children,

a son and a daughter. They are twins. The son is Wu Jianming. Her daughter is Wu Qiyao. Mrs. Wu

and her daughter are in Hangzhou, but her husband, Wu Wei, a doctor, is in Shenyang. Mrs. Wu's son

is in England. He is a college(大学) student. Wu Jianming and I go to the same college. We are

classmates and we are good friends. I teach him English and he teaches me Chinese.

根据短文内容，判断下列句子正误。

( )1. Wu Jianming and Wu Qiyao are twins.

( )2. Li Yan's son is a student in Shenyang.

( )3. Jack Hill and Wu Jiangming are high school students.

( )4. Li Yan's husband is a doctor.

( )5. Wu Jianming teaches Jack Hill Chinese.