Was it through Mary, _____ was working at a high school, ____ you got to know Tom?
If we work with a strong will, we can overcome any difficulty, _____ great it is.
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?