在图书馆内,我们既不应该吃东西也不应该交谈.
We should talk in the library.
Thanksgiving Day is c on the fourth Thursday in November in America.
Foreigners are surprised to see many great d of China.
Lao She Teahouse d the changes in Chinese society over fifty years.
I want to learn English well.Please give me some a .
There is nothing in my bag.It is e .