You have to show your ID before checking in the hotel.In the sen

You have to show your ID before checking in the hotel.In the sense of word formation, the underlined word"ID"is formed by ______.
A、conversion
B、clipping
C、compounding
D、acronymy
【正确答案】：D
【题目解析】：在入住酒店前你必须出示你的身份证。在构词意义上，带下划线的“ID”由首字母缩略词构成。