Hi,
When shoud we include the 'a' here and when not? What do I have to know to make correct choices?
1.As he said, giving is
"a central feature of the historical purpose of government."
Could the writer have withheld "a" here?
2.They offer a lot of different activities: a dunk tank,
a "bouncy house" (why not "a bouncy house" -- thus, I think 'a' is unnecessary?)