Harry: Hi, Bill! This Sunday is my happiest day. I will get married. Would you like to join us?
Bill: Oh, really? I’m glad to hear that. I’m sorry but I can’t.
Harry: - - - -
Bill: Because, I have to finish my Science Project at the weekend. I will present it to my lecturers on Monday.
Harry: - - - -
Bill: It’s about the life of reptiles. I studied on their diet and sheltering.
Harry: - - - -
Bill: Yes, they are my favorite.
Which of the following questions does NOT Harry ask Bill?