Hey everyone, this is my first post.
This question may sound a little stupid. I can't always decide whether I have got to write "have" or "did".
For example:
"Have you done your homework?" or..."Did you do your homework?"
Wich one of both is correct?
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How do I can always recognize whether I have to write "have" or "did"?
This year I'm going to sit for the FCE and if I dont solve this problem I'll really get into trouble
