QUES: Continue writing.

Keratin made Kenneth's hair shinier than Matthew's, because 
+++++++++
ANS: Matthew ate a lot of junk food.


QUES: Continue writing.

He paid more attention to the mobile game than the conversation because the 
+++++++++
ANS: conversation was boring.


QUES: Continue writing.

Jennifer craved attention much more than Erin , so 
+++++++++
ANS: Jennifer was always keeping herself in the spotlight.


QUES: Continue writing.

Cynthia was given a medical diagnosis by Maria at an appointment. 
+++++++++
ANS:
Cynthia was the patient.