Praise is to criticize as flatter is to insult or offend. To offend the person or group.
Answer:
"Be careful, the teacher told us, to write your name legibly"
The definition of communal is "Shared by all members of a community; for common use."
I would say that their kitchen <em>is</em> communal because their "community" consists of all the roommates who use the kitchen and contribute to it. If only one person contributed to the kitchen stock, then it would not be communal.
There are not many cons, but often the most common argument against them is,
1) How "Unqualified teachers" are going to be teaching kids about financial literacy
2) How the school districts will fund these new courses
3) And how are they planning on adding these subjects to crowded curriculums
The difference I see is exhibit(n) are items or objects and exhibition is an event in which the items are shown