Sentence 1: Amy was in London for a week. 
 Sentence 3: She excitedly boarded and went up to the mostly empty second floor 
 Sentence 4:  She hadn't anticipated the weather to being cool 
 Sentence 5:  She ended up having to sit inside the bus 
 Option 1: She always wanted to ride upstairs on a double decker bus. 
 Option 2: She always wanted to ride on the lower level of a double decker bus.