---You don’t often see them, do you? ---No, I see of them.
Only when I left home to go to college ___ how much my mother had done for me.
For many cities in the world, there is no room to spread out farther, _____New York is an example.
Beautifully ________ in a quiet spot near the river, the hotel attracts a lot of people to stay.
_________ we have been classmates for three years, she hasn’t left me much impression, so I can’t remember her after graduation.
When and where to build the new factory _____not decided yet .