Answer:
"an" open house
Explanation:
They were missing the "an."
Personification .......................
it would not be neccessary for a student to know how to play a musical instrument, but it is helpful in certain fields and jobs. if you wish to be a musician or a music teacher, it would help to know how to play an instrument.
The first answer has almost nothing to do with the original passage, the next 2 are just copies of the passage, the last answer deals with the passage yet also adds additional information making it the best paraphrase.