The traffic rule says that the children less than 40 pounds and under the age of four must be in a child safety seat.
A. being weighed
B. weigh
C. weighed
D. weighing
网友回答
A. being weighed
B. weigh
C. weighed
(答案→)D. weighing
解析:考查非谓语动词的用法。Weigh意为权衡,重量为……,用法为the box weighs 40 kg.因此sth 跟weigh之前是主动关系,此处weigh在句中作children的定语,weighing=which weigh