阅读下面材料，在空白处填入适当的内容(1个单词)或括号内单词的正确形式。
It was the ambition of an eleven years old boy in Kansas
City to be an engine driver. Born without arms, he had been sent to special
schools {#blank#}1{#/blank#} he learned to use his {#blank#}2{#/blank#} (foot) as “hands”. He spend all his
spare time {#blank#}3{#/blank#} (watch) trains and one day his dream
came {#blank#}4{#/blank#} (truth). Seeing a deserted engine, the
boy climbed in, he had no {#blank#}5{#/blank#} (difficult) in starting it up with his
feet. Soon he was traveling along {#blank#}6{#/blank#} forty miles an hour. Signalmen could
not see the young driver, so they set out {#blank#}7{#/blank#}(stop) the train. Meanwhile the boy
reached Missouri, stopped the engine himself, and then {#blank#}8{#/blank#}(make) it go backwards. When he was
near home, a railwayman caught up with the engine and stopped it. At first, he
was very angry, but he smiled when the boy said {#blank#}9{#/blank#} (simple), “I like trains.” “Well, I'm
glad you don't like planes!” answered {#blank#}10{#/blank#} railwayman.
