Jack is a boy, ______ last name is Brown.
—Can’t you stop _____ so much noise?—I’m sorry for giving you so much trouble.
The bike is the first present I got from my father.
-I believe we’ve met before. -No, I’ve never been here before.
-Where’s the old blue bag? - I’m not sure, but it ______ be thrown away. It be somewhere in the house. I saw it yesterday.
The mobile phone has influenced people’s life a lot since it________.