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 Hi, John. Were you at work last Saturday?

 Yes, I was. Unfortunately.

  --- Did you have to stay in the office a whole day? Did you have to work on Sunday, too? When did you have to come in? What did you have to do? Why did you have to do it?

 I don't normally work at weekends but we are very busy at the moment.

  --- Did you have to stay in the office a whole day? Did you have to work on Sunday, too? When did you have to come in? What did you have to do? Why did you have to do it?

 I did.

  --- Did you have to stay in the office a whole day? Did you have to work on Sunday, too? When did you have to come in? What did you have to do? Why did you have to do it?

 I came in at 7.30 and left at 5.30.

  --- Did you have to stay in the office a whole day? Did you have to work on Sunday, too? When did you have to come in? What did you have to do? Why did you have to do it?  

 Usual stuff. You know. I answered phones and checked e-mails. I had to call one big customer who didn't want to wait for the delivery.

  --- Did you have to stay in the office a whole day? Did you have to work on Sunday, too? When did you have to come in? What did you have to do? Why did you have to do it?

 No, way! I enjoyed my Sunday in the garden.