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题目
-Who is the man over there? Is it our English teacher? - No, it_______ be our Eng
-Who is the man over there? Is it our English teacher?
- No, it_______ be our English teacher. It ______ be our Chinese teacher.
A. mustn’t; must B. can’t; must C. needn’t; can D. mustn’t; can

提问时间:2020-06-27

答案
B. can’t; must
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