Sentence 1: The group got together in front of the ice skating ring. 
 Sentence 3: The janitor told us that the place is closed for today 
 Sentence 4:  However, Pedro proposed that we should get something to eat 
 Sentence 5:  Therefore, I drove everyone to a nearby restaurant 
 Option 1: When we tried to open the front door, it wouldn't open. 
 Option 2: We walked in and paid for our skate rental.