----_______ are you?—----I’m thirteen.A. What B. How. C. How old
Look! The sign on the wall ________ “No photos”.
Don't worry. He is _______ to take care of the little baby.
—Does your father still smoke?—No, he has succeeded in_____smoking for three years.
—How long have you been in Beijing?—_____
—How much is the white coat?—It’s_____yuan.