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     Restaurant owners have to know how    1   (make)food. They also have to know how to make money. Here are some things they   2   (learn)from scientific studies . The color red makes people hungry . Red

also makes customers   3    (eat) faster. Many fast food restaurant, therefore , have red furniture or walls. Soft colors like pink and light blue make people    4   (relax),so they spend more time   5   (eat) their meals. Soft lighting makes people look good , but it makes food look bad.. Loud music may be nice at first, but it soon makes people want   6    (leave). Hard seats also make customers want to eat quickly and   7   

(leave) . Many restaurants, especially fast food restaurants,  8   (use) this knowledge to make customers

eat faster. Because customers    9   (stay) very long, small restaurants can   10   (serve) many people every day .

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6.            7.             8.              9.            10.