单项选择题
A．University. B．Community College. C．Middle school. D．Primary school.
A．The doctor’s examination. B．His trouble with the cold. C．The tight neck of his sweater. D．His mother’s anxiety.
A．At the beginning of the 18th century. B．At the beginning of the 19th century. C．At the beginning of the 20th century. D．At the beginning of the 21th century.