题目内容：
—I‘ve been told to pay the rent． —But it‘s already been paiD．It ______ by someone else． A．must be
B． may be
C． must be paid
D． must have been paid
参考答案：
答案解析：
单选题：—I‘ve been told to pay the rent． —But it‘s already been paiD
- 题目分类：英语
- 题目类型：单选题
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—But it‘s already been paiD．It ______ by someone else． A．must be
B． may be
C． must be paid
D． must have been paid