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I don’t know when he _________ tomorrow. If he _________, I’ll let you know.


  1. A.
    comes, comes
  2. B.
    will come, comes
  3. C.
    comes, will come
  4. D.
    came, will come
B
第一句为when 引导的宾语从句,从句的时态,要根据时态本身来决定,第二句为if 引导的条件状语,主句为一般将来时,从句要用一般现在时,代替将来时,故选答案为B
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