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I can't meet tonight. I have my kickboxing classes. (do)
How long have you been doing that?
Oops!
Okay!
Her Arabic is pretty good already. (learn)
How long has she been learning?
Oops!
Okay!
I used to be quite good at basketball before I gave up.
How long did you play for?
Oops!
Okay!
My parents are having a party for their wedding anniversary on Saturday. (be married)
How long have they been married?
Oops!
Okay!
He only started playing again after the injury two months ago. (be injured)
How long was he injured?
Oops!
Okay!
It's the first accident he's ever had. He's actually a very good driver. (drive)
How long has he been driving?
Oops!
Okay!
At last! You're here. I was beginning to worry. (wait)
How long have you been waiting?
Oops!
Okay!
I need to stop. I reckon I've pulled a muscle. (warm up)
How long did you warm up for?
Oops!
Okay!
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