The video, Under the Dome, has rapidly pushed the public______about air pollution and encouraged people to join in efforts to make a difference.
We will never forget the factory _______ we worked last year.
Can you lend me the magazine _____ last week?
The old lady lives in a house ______ windows are broken.
These photos reminded him of the places _____he visited last year.
— Have you finished all your homework? — Of course. I ________ it before I went out to play football.