In 1715 ,at fleet(舰队) of Spanish ships left Havana, Cuba for Spain. On their way home, they ran into bad weather. Eleven ships--along with{#blank#}1{#/blank#}of treasure they were carrying--were lost. About 1,000 people{#blank#}2{#/blank#}.

    For nearly 250 years, the sea kept most of the treasure to itself. Then, in the 1950s, a man found coins and some {#blank#}3{#/blank#} treasure on a Florida beach. He soon {#blank#}4{#/blank#} that one of the Spanish ships must have been nearby(;(在附近). That's when a big undersea treasure hunt(搜寻) began.

    Two big discoveries were {#blank#}5{#/blank#} just in the summer of 2015. In June, some professional treasure hunters found coins and jewellery worth over $1 million. There was even one gold coin that was worth over

 $500,000 {#blank#}6{#/blank#}. The following month, a team of treasure hunters found 350 gold coins, together worth $4.5 million. So far, about $400 million worth of treasure is said to have already been found.

    So who can {#blank#}7{#/blank#} treasure found at sea? Each case(情况) is different, but in the case of the 1715 fleet, 20 percent goes to the state of Florida for its museums. Other treasure is 2{#blank#}8{#/blank#} between Queens

Jewels and whoever finds it. Queens Jewels is a company who owns the rights (权利) to the fleet.

    Even if you are not {#blank#}9{#/blank#} to keep what you find, there is plenty of reason to be excited. "These finds are {#blank#}10{#/blank#} not just for how much they are worth, but their historical importance," says the owner of Queens Jewels.

    The summer holiday was coming but Zach was a little sad. He would have to move {#blank#}1{#/blank#} the holiday, leaving his friends and his tree house. The tree house was Zach's favorite place to go to when he wanted to be alone. He also liked {#blank#}2{#/blank#} his friends there. They would play for {#blank#}3{#/blank#}.

    Zach told his mom, "I don't want to move. I'm going to miss my friends. I'm also going to miss my tree house. I want to take it with me." "Zach, but we have to {#blank#}4{#/blank#} your father's changed his job. He is already {#blank#}5{#/blank#} waiting for us. You will have a much {#blank#}6{#/blank#} bedroom, and you will meet new friends at your new school," {#blank#}7{#/blank#} his mom. Zach wasn't so sure.

    When Zach and his mom arrived, Dad took Zach to the backyard. There, Zach saw a big tree house. "Wow!" Zach shouted. "This is great!" All of a sudden, Zach heard a {#blank#}8{#/blank#} voice. "Are you moving in? My name is Joey and I live next {#blank#}9{#/blank#} Can I have a look at your tree house?"

    "I think I'm going to {#blank#}10{#/blank#} it here after all!" Zach told his mom and dad that night.

—Yes,{#blank#}2{#/blank#}is Mary.