题目内容

Will you ________ finish your homework before eight o'clock this evening?


  1. A.
    can
  2. B.
    may
  3. C.
    be able to
  4. D.
    are able to
C
此题题眼为will you。will为助动词,则you后面应该用动词原形。can与be able to表“能力”时意思相同,但情态动词can只有can和could两种形式,而be able to有人称、数和时态的变化。
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