— do you go to the library? —Once a week.A. How many B. How often C. How long
The camera________in 1827 by Joseph Nicephore Niepce.
The Olympic Games of 2016 will________in Brazil.
He ______ much food _____the poor family during the hard time.
She used to ______ in the morning, but now she is used to ________ at night.
—Is this your book? —No, it is ______book. It belongs to_______.