—Don't worry. We have {#blank#}1{#/blank#} of time.

    The inhaler(喷雾剂) was lying there on the table. Cassie froze.

    "Oh no!" she breathed. "Not again!"

    She looked at the little green c{#blank#}1{#/blank#}on the cooker-12:17. The train would leave at 12:34 and her grandpa had been gone around four minutes. Could she-if she ran like a racehorse get to the station before he got on the train？There was no time to lose. She grabbed her jacket, her keys and her purse. Her fingers m{#blank#}2{#/blank#}fast to tie her shoes, but too fast to be accurate. She opened the front door and shut it heavily behind her.

Her b{#blank#}3{#/blank#}began to work fast, Which is the quickest way to find him？Should I g{#blank#}4{#/blank#}which route he has taken and may be lucky enough to catch up with him？Or should I just get to the station the fastest possible way and hope to be there when he arrives？But there are two entrances to the station. He might take e{#blank#}5{#/blank#}, What should I do？"

    Cassie was worried about her grandfather. As she ran through the shopping centre, she pictured him sitting on the train, and then s{#blank#}6{#/blank#}his breath becoming difficult, and his face turning pale. He would search for the inhaler and it wouldn't be in his pocket.

    A man was setting out a table in front of his cafe. There was no space between him and the table. She ran into him and knocked him down. "Sorry!" she tried to call out as she raced past him, but she had so little breath that she only made a very w{#blank#}7{#/blank#}sound. She knew he didn't hear her, but she couldn't stop.

    At last she was at the station. She looked at her watch. It was 12:30 and she still hadn't seen her grandfather.