Make Quick Money Stocks

What actions are best for a quick profit?
I am a student taking an economics class and we have to choose at least 4 companies to invest our (our teacher) money in. Any suggestions? Oh, and please explain why:)
responses on the stock available in INVESTOPEDIA.COM.but FREESTOCKCHARTS.COM and my favorites, I have made money from these are of Petrobras-A, PBR.A, Konghong corp.KONG, U.S. Steel, X and last but not Equally important is the management of hotels and inns, HMIN.it all depends on the pressure of time and money invested and the most important factor is the market trend, ie, if all markets are falling there's nothing you can do to prevent any action to go down, go with the flow, not against it or simply sell the shares that day traders make almost every day, just wait until it goes beyond its 20-day moving average and buy and hold until it falls below line again, so I have reservations CELEBRATES long term, and if your teacher bought with real money, it would add to their income, but remember, no action goes all the time, that would be fantastic and they would all be millionaires, just follow the trend in a graph, if dropping a stone, sell and just pick one with an upward trend in place, GL,
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