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．weighing
D．weighed
答案
答案：C
题目分析:考查非谓语动词。由and可知此处是和under the age of four短语一起来修饰名词children，而动词weigh和children之间是主动关系，所以用现在分词做定语。句意：交通规则表明年龄在四岁以下并且不到40英镑的儿童必须要坐在儿童安全座椅上。故C选项正确。