The traffic rule says young children under the age of four and __ less than 40 pounds must be in a child safety seat.

     A. being weighed       B. to weigh              C. weighed    D. weighing

The traffic rule says young children under the age of four and ____ less than 40 pounds must be in a child safety seat.

The traffic rule says young children under the age of four and        less than 40 pounds must be in a child safety seat.

The traffic rule says young children under the age of four and ____ less than 40 pounds must be in a child safety seat.

The traffic rule says young children under the age of four and ________ less than 40 pounds must be in a child safety seat.

A．being weighed? B．to weigh

C．weighed? D．weighing