The doctor has ________ the possibility that Justin suffers AIDS.

It is a fact that _________ differences between countries may cause misunderstandings in communication.

Shortly after the book Uncle Tom’s Cabin________, the Civil War of America________.

Our physics teacher and English teacher always give their lessons in a lively and clear way,____ greatly benefits us students.

Millie was born on Feb. 22. The picture ofher star sign is Do you know the name of the sign