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The teacher's office is dark now. Our English teacher ________ be in his office.


  1. A.
    mustn't
  2. B.
    must
  3. C.
    can
  4. D.
    can't
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科目:初中英语 来源:外研社七年级英语(上)练习题 题型:016

My mother is a teache in ________ university.

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