The traffic rule says young children under the age of four and ____ less than 40 pounds must be in a child safety seat. （2010浙江卷）
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. （2010浙江卷）
A. being weighed B. to weigh C. weighed D. weighing
D