Use of English PRO

If (0) ETERNAL happiness is what you are (1) ............ for, forget about it. It is a common mistake to think that one can be happy all the time, happiness is a mood and not therefore something permanent. It is merely one of a wide (2) ............ of emotions that us humans are able to feel and it would be crazy to think otherwise. It has been (3) ............ out that those who deem themselves to be happy all the time are either (4) ............ morons or liars. There have been several studies into the (5) ............ and it is crystal clear that everyone needs to (6) ............ a mixture of emotions in order to reach the point in which they could truly know what happiness is. By saying this, we (7) ............ that people need to sometimes be unhappy, upset and annoyed to dear the way for them to become cheerful and upbeat at other times. Over long periods of time, this variation of emotions (8) ............ you to actually know what happiness is and also make you a well-balanced individual.