University of Cambridge, ______ in 1209, is home to a great number of outstanding figures.
When he,he couldn’t, for a moment, recognize his surroundings.
Before testing this method on patients, Dr. Baker had tests for two years on three hundred dogs.
If you like, ____ at any time.
George’s mother had thought it would be good for his character to _______ from home and earn some money on his own.
Ugly papers sold on streets are another problem of pollution. Young readers should _____ them.