Smoking is bad for your health.You’d better .
— Do you know everyone at the party? — Almost, but I don’t know the one you talked with at the door.
Do you know the little boy ________ is helping the old man cross the road?.
I will never forget the day____ we spent in the old town with small houses.
—Would you like to see the comedy with me? —Yes, I’d love to. I like the movies ______ can make me laugh.
–Do you still remember the city ____ we visited last year ? --You mean Zhengzhou? I know there is a factory____ your mother worked.