Problem: During the class lecture Betty made sure to be attentive while Patricia preferred to be social because 

My choice: Betty wanted to attend Harvard.


Problem: Emily managed to recover from the flu very quickly but Tanya did not. This is because 

My choice: Emily had a very strong immune system.


Problem: Last month Elena went on vacation but not Christine because 

My choice: Elena had to take time off.


Problem: The skills of Maria were far superior to Tanya because 

My choice:
Maria was a talented individual.