I don't think the gold ring _________ the price．It's _________ twenty dollars at the most．
A.worth；worthB.costs；costC.valued；costD.worth；valuable在线课程A
解析：
be worth后可接表示金钱或价格的名词，第一空填worth，worth the price为形容词短语作宾语补足语；
第二空填worth，worth twenty dollars为形容词短语作表语.答案为A.