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．to weigh
C．weighed
D．weighing
答案
答案：D
考查非谓语。young children与weigh为主谓关系用现在分词作定语。 句意：交通法规定四岁以下以及小于40千克的儿童必须坐在儿童座位上。