PRC is ________the People's Republic of China.
The man ____ visited our school yesterday is from London.
The woman ____ is talking to my mother is a friend of hers.
Because of my poor memory, all ____ you told me has been forgotten.
Do you remember those days ____ we spent along the seashore very happily?
Tom did not take away the camera because it was just the same camera ____ he lost last week.