A) Mr. Bruce's departure will diminish the reputation of our school like none other.
B) Nothing will diminish the reputation of our school as much as Mr. Bruces' departure will.
(Why is choice A incorrect?? How are you supposed to use the phrase "none other" or does that not exist?)
Members of the debate team, determined to hone [their] skills [in argumentation], [have been practicing] each day and [competing on] every possible occasion.
*Why is this no error? I thought competing on should be competing at....