For each sentence of the following passage, decide whether it is necessary to add quotation marks or cite a source.

Explain your reasoning at the end.

1. Many people have made money investing in real estate in the past couple of years. However, what goes up, com back down

2. EZHomeBuilders, a corporation that builds luxury homes, announced, that falling real estate values are causing them to scale back some projects and cancel others

3. After they announced this, shares of EZHomeBuilders fell 50 percent on the New York Stock Exchange, closing at $27.14 per share

4. Shares of other major builders fell as well

5. My aunt, Shelly Maughn, who is a residential real estate broker, says she thinks the market will return to the way it was about a decade ago, with prices increasing more slowly

6. She also used to work in retail sales and sold furnishings and appliances for homes where she watched sales go up and down with the housing market

7. When business for home builders slowed, business slowed for us, she says

8. I worked as an intern in Aunt Shelly's real estate office last summer and I really enjoyed it

9. One day, I hope to become a residential real estate broker and investor even though real estate can be a challenging career.