A bilingual speaker often uses two languages alternatively durin

A bilingual speaker often uses two languages alternatively during a conversation with another bilingual speaker s a speech situation known as ______.
A、Ethnic dialect
B、regional differences
C、bilingual community
D、code-switching
【正确答案】：D
【题目解析】：A bilingual speaker often uses two languages alternatively during a conversation with another bilingual speaker s a speech situation known as code-switching.