Final answer:
To print "You're excited!" if the string has the text "!" but not "!!" or "!!!", add the elif statement, and modify the else block to print "Are you bored?"
Step-by-step explanation:
The code snippet provided already checks for the presence of "!!!" and "!!" in the input string. To print "You're excited!" if the string has the text "!" but not "!!" or "!!!", you can add the following code in the blank:
elif "!" in a_string:
print("You're excited!")
This code will only execute if the string has the text "!" and does not have "!!" or "!!!" in it. Finally, the else block can be modified to print "Are you bored?" if the string doesn't have any exclamation points, resulting in:
else:
print("Are you bored?")