With the development of science and technology, the prices of TV sets have ________.

A.gone down  B.went down

C.brought down  D.been gone down

 

【答案】A
【解答】

A

【解析】答案 A [考查动词词义辨析。go down为不及物动词词组,没有被动语态,且表示完成,故选A。]