单项选择题
A．the airplane B．the automobile C．both the plane and the automobile D．neither the plane nor the automobile
A．About half of Panama lies east of Miami. B．Panama is squeezed into the narrowest portion of Central America. C．Panama offers the lowest point in the North American continental divide. D．All of the above are tru
A．making friends B．calling his mother names C．seeking adult approval and praise D．being bossy with other children