The sign on the left tells us that _______ . A. this is a place for us to swimB. it’s safe to swim in this placeC. swimming is not allowed here
His parents ____ high school teachers.
-- ____ is the letter from? --From my aunt in London.
—Does Liu Li have a pen? -- ____ . But he has a pencil.
Look at ____ photo. It’s ____ photo of my family.
---Would you mind taking the underground to the theatre tonight? --- .it will take less time than driving a car.