AHer name is Mary． She comes from America． She is in China with her father and mother． She can speak a little Chinese． She studies in No． 80 Middle School in Tianjin．She is in the same school as her parents(father and mother)． She is a good student． She goes to school six days a week． She likes getting up early． She doesn’t like to be late．She often goes to school very early． But today she gets up late． So she gets to the classroom at 7：30． But there aren’t any students in it． She is not late． She is still early． It’s Sunday today． The students are all at home．( )21．Mary is from _______．

Some diesel engines are fitted with a thermometer in the cooling water outlet from each cylinderIf the cooling water temperature from all cylinders begins to rise above normal, you should suspect （）

It（）exactly thirty years since I graduated from college.

Mary has been a secretary in this company ______she graduated from Beijing University.

It（）exactly thirty years since I graduated from college.

Mrs. Green _____ in this university for more than 20 years when she retired from work last month.

Mrs. Green ______ in this university for more than 20 years when she retired from work last month.

What did J.K. Rowling fear most when she was studying in university?

She worked as a computer operator after university.

—So ______ ?　　—Well,she examined me. She put a thermometer in my mouth and took my temperature. She said it was normal.

Oxbridge graduates make ______only two percent of the total number of students who graduate from British universities.