单选题
When Mary discovered how treacherous the streets could be, she demanded that her boys stay close to her in the church gym and youth center, and the boys were {{U}}as good as gold{{/U}}, listening to every word she says.
【正确答案】
B
【答案解析】[分析] 形容词辨析
as good as gold(小孩)有礼貌的，乖的；(人)很亲切；而A．very naughty非常淘气、顽皮，没规矩的；B．very obedient服从的，非常孝顺的；C．faithful守信的，忠实的，可靠的；D．patient耐心的，忍耐的。所以答案为B。