【题目】Science and technology is changing fast nowadays. I bought this MP3 player at the beginning of this year but now it's out of________.
A. date
B．order
C． use
D．sight
在线课程【答案】A
【解析】out of date意为“过时了”；out of order意为“杂乱无序的”；out of use意为 “不能用了”；out of sight意为“看不见了”。由“当今科技快速发展”判断，应选A项。