Why don’t/didn't you go swimming with them?

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brian&me

Senior Member
Chinese - China
This is a test question.

--Hi, Lily! Why don’t you go swimming with them?

--Because I ____ my homework yet.

A. haven’t finished

B. didn’t finish

C. don’t finish

The answer key is A. I have no questions about the answer key but this sentence: why don’t you go swimming with them? I wonder if the “don’t” should be “didn’t”.

Thanks in advance.
 
  • grassy

    Senior Member
    Polish
    I think the original sentence indicates they haven't gone swimming yet. Your sentence implies that they did.
     
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