1.I studied for 5 years, so I was tired.
2.I loved her until I found out that she cheated on me for a year.
3.Maria worked at the company for 20 years until they fired her one day for no reason.
4.John waited for Paula for 1 hour before she finally arrives. 5.Lisa had trouble seeing the screen because she didn't bring her glasses.
6.Cheryl didn't wait long when John showed up.
7.I exercised for 30 minutes when the phone ringed.
8.The traveler suddenly realizes that he left home without his passport.