单选题 Many people invest in the stock market hoping to find the next Microsoft and Dell. However, I know from personal experience how difficult this really is. For more than a year, I was {{U}} {{U}} 1 {{/U}} {{/U}}hundreds and sometimes thousands of dollars a day investing in the market. It seemed so easy, I dreamed of {{U}} {{U}} 2 {{/U}} {{/U}}my job at the end of the year, of buying a small apartment in Paris, of traveling around the world. But these dreams came to a sudden and dramatic end when a stock I {{U}} {{U}} 3 {{/U}} {{/U}}, Texas cellular pone wholesaler, fell by more than 75 percent {{U}} {{U}} 4 {{/U}} {{/U}}a one year period. On the worst day, it plunged by more than $15 a share. There was a rumor the company was exaggerating sales figures. That was when I learned how quickly Wall Street punishes companies that misrepresent the {{U}} {{U}} 5 {{/U}} {{/U}}
In a panic, I sold all my stock in the company, paying off margin debt with cash advances from my credit card. Because I owned so many shares, I {{U}} {{U}} 6 {{/U}} {{/U}}a small fortune, half of it from money I borrowed from the brokerage company. One month, I am a winner, the next, a loser. This one big loss was my first lesson in the market.
My father was a stockbroker, as was my grandfather {{U}} {{U}} 7 {{/U}} {{/U}}him.(In fact, he founded one of Chicago's earliest brokerage firms.) But like so many things in life, we don't learn anything until we experience it for ourselves. The only way to really understand the inner {{U}} {{U}} 8 {{/U}} {{/U}}of the stock market is to invest your own hard-earned money. When all your stocks are doing {{U}} {{U}} 9 {{/U}} {{/U}}and you feel like a winner, you learn very little. It's when all your stocks are losing and everyone is questioning your stock-picking {{U}} {{U}} 10 {{/U}} {{/U}}that you find out if you have what it takes to invest in the market.

【正确答案】 B

【答案解析】每天花数百有时甚至上千美元投资于证券市场。spend money(in)doing something“花钱做某事”。用make的话，构成make dollars“赚钱”，表达的意思就成了“靠投资于证券市场每天赚数百甚至上千美元”，意思也可以，但结构不对，后面应是by investing in the market，in不能省掉，故应选B项。