Swimming is very popular in summer. People like swimming in summer because water {#blank#}1{#/blank#} (make) people fell cool. If you like swimming and swim {#blank#}2{#/blank#} a wrong place, it may not be safe(安全的).Last summer, more than ten people died while they were {#blank#}3{#/blank#} (enjoy) themselves in the water, and {#blank#}4{#/blank#} of them were students. {#blank#}5{#/blank#}some people are still not careful in swimming. They often think they swim so well that {#blank#}6{#/blank#} can happen to them in water. Summer is coming again. If you go swimming in summer, don't forget that better swimmers have died in water. They {#blank#}7{#/blank#} (die) only because they were not {#blank#}8{#/blank#} (care), not because they could not swim. So don't get into water when you go swimming yourself, go with your teachers or your parents. If there are "No {#blank#}9{#/blank#} (swim)" sign, don't get into water, either. If you remember these, swimming will be {#blank#}10{#/blank#} (safe).