When I came into the room, I saw a cat ______ under the table.
—Do you know ________ the man with sunglasses is? —I’m not sure. Maybe a reporter.
Be sure to let Tom know the notice as soon as he______.
—It’s nice to see you again. Have you changed jobs? —No, ________ my cousin here.
—Is that your best friend Simon? —No, it _______ be him. He flew to Hong Kong yesterday.
—Have you found the information about Columbus? —Not yet, but I’ve found a website ________ gives an introduction to Columbus. It’s be very ________.