{#blank#}1{#/blank#} {#blank#}2{#/blank#} {#blank#}3{#/blank#} {#blank#}4{#/blank#} {#blank#}5{#/blank#}，this swimming pool is twenty square meters．

    Three t{#blank#}1{#/blank#} did some v{#blank#}2{#/blank#} w{#blank#}3{#/blank#} during the school holidays. Betty worked in a children's hospital. All the children there get serious i{#blank#}4{#/blank#}. She met a girl called Cindy. Mark spent time with children without parents. He met Vivien, who is unhappy and l{#blank#}5{#/blank#} because her parents have died. Annie offered to help d{#blank#}6{#/blank#} children. They have d{#blank#}7{#/blank#} walking or moving. She met Tim, a boy who h{#blank#}8{#/blank#} his legs in an accident. She wants to help children like Tim and r{#blank#}9{#/blank#} their s{#blank#}10{#/blank#} in the future.