______in the heart of Toronto is the Canadian National Tower, ______ is often called the CN Tower for short.
Only after __________ his homework __________ to go out and play.
Medical staff fled as flames and smoke filled an Indian hospital, __________ their patients to a fire, which killed 89 people.
Mrs. White showed her students some old maps __________ from the library.
The man in black is __________ my lifeguard. He is also my close friend.
My boss asked me if I __________ well with my new job, but I found it hard to respond.