问题
选择题
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．weighs
C．weighed
D．weighing
答案
答案：D
容易误选B或C，将其当成谓语看待。under the age of four and ________ less than 40 pounds用作children的定语。动词weigh与名词children是主动关系，所以选择weighing。