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科目: 来源: 题型:单选题

We ________ worry about not ________.


  1. A.
    should; have supper
  2. B.
    shouldn’t; having supper
  3. C.
    should; had supper
  4. D.
    shouldn’t; had supper

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科目: 来源: 题型:单选题

It’s very clever ________ you ________ swim in the river.


  1. A.
    for; not to
  2. B.
    to; to
  3. C.
    of; not to
  4. D.
    with; not to

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