The teachers are busy _______ the exam papers while the students are busy ________ the exam.


  1. A.
    prepare; prepare for
  2. B.
    preparing; preparing for
  3. C.
    prepare for; prepare
  4. D.
    preparing for; preparing
B
be busy doing sth．“忙于干某事”，prepare the exam papers“準(zhǔn)備試卷”；prepare for the exam“為考試而做準(zhǔn)備”。
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科目：高中英語 來源： 題型：

.The teache rfound ____ difficult to decide____ he would take with him to attend the

conference.

  A.it;whom        B.himself;who       C.this;whom      D.that;who

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