must’ve 中ve 是谁的缩写 must‘ve 请举例

题目

must’ve 中ve 是谁的缩写 must‘ve 请举例

答案

must have
must have been是对过去的事实的肯定猜测
She sings so well.I think she must have been a singer.她唱得真好.我想她以前肯定是名歌手.