3 Accusations (cover the questions)
When I saw you, you were taking a desktop computer out of the office. Why were you doing that?
I was taking a desktop computer out of the office because ...
When I saw you, you were wearing swimming shorts and a Hawaiian shirt during your graduation ceremony. Why were you doing that?
I was wearing swimming shorts and a Hawaiian shirt during my graduation ceremony because ...
When I saw you, you were taking a shower with your clothes on. Why were you doing that?
I was taking a shower with my clothes on because ...