He left ________any of his friends _________ him _________.
The magnificent tower must be saved, ________ the cost!
After supper she would sit down by the fire, sometimes _____ an hour, thinking of her young and happy days.
People were not allowed to enter the reading room because it _______.
._____ alone in the large house, the little boy had to learn to survive by himself.
Chengdu is a city _______ you hate to say goodbye once you have visited it.