Thetrafficrulesaysyoungchildrenundertheageoffourand

問題詳情：

The traffic rule says young children under the age of four and __     _ less than 40 pounds must be in a child safety seat．

A．weighing          B．weighed         C．being weighed           D．to weigh

【回答】

A

知識點：非謂語動詞

題型：選擇題