Answer:
3. Before the tourists went on a guided tour of the city, they got off their...
4. The business man had breakfast as soon as he checked in at the airport.
5. The lecturer finished speaking by the time the audience...
6. The cousins arrived at the stadium at 11 a.m. No sooner than that, the volleyball tournament started at 12 p.m.
I think that's right? #4 could probably be flipped if you want
