(C)121.—Hello! May I speak to Mary?
—_______
A.I’m Mary.B.Mary is me.
C.This is Mary speaking.D.I’m speaking.(D)122.My mother asked you _______ when you come back.
A.ring up herB.ring her upC.to ring up herD.to ring her up( D )123.You should _______ when your parents aren’t at home.
A...
