题目内容

--Do you know if he ________ to play basketball with us?

--I think he will come if he ________ free tomorrow.


  1. A.
    come; is
  2. B.
    comes; will be
  3. C.
    will come; is
  4. D.
    will come; will be
C
C 第一个if意为“是否”,第二个if意为“如果”.主句为一般将来时,if引导的从句应用一般现在时代替一般将来时.
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