sentence: The clock on Jessica's phone was always a few minutes behind Elena's phone, as 
complete: Elena  tended to arrive at their work office fifteen minutes early on weekday mornings.

sentence: Cynthia was offered the promotion instead of Laura because 
complete: Cynthia has better managerial and programming skills.

sentence: We cannot see the coin at the base of the pool but we can see it at the base of the drum. The 
complete:
drum  is shallow.