根据短文内容和所给中文提示，在空白处写出正确的单词，每空—词。
Today, roller skating(滑旱冰) is popular and fun. And there are many {#blank#}1{#/blank#} (样式) of roller skates. However, before 1750, the idea of skating didn't
exist. It was started from Joseph Merlin whose work was making musical {#blank#}2{#/blank#}
(器械).
One day, {#blank#}3{#/blank#} (某人) invited Merlin to attend a music party and it was a(n) {#blank#}4{#/blank#}
(愉快) for him. As the day of the party came near, Merlin
began to think how to make a grand entrance(隆重登场) at
the party. He thought he would be a(n) {#blank#}5{#/blank#} (男主角) if he could skate into the room.
Merlin tried {#blank#}6{#/blank#} (几乎) all ways that he could think of to make himself roll. Finally, he
decided to put two wheels under each shoe. These were the first roller skates
in the world. Merlin once {#blank#}7{#/blank#} (提到) that he
was very proud of his invention.
On the night of the party, Merlin rolled
into the room while playing the {#blank#}8{#/blank#} (小提琴).
Everyone was surprised to see him. There was just one problem. Merlin had no
way to stop his roller skates. He rolled on and on, and all of a {#blank#}9{#/blank#}
(突然), he ran into a huge mirror that was hanging on the
wall. As a result, the mirror fell down, breaking into pieces. Without
{#blank#}10{#/blank#} (疑问), nobody forgot Merlin's entrance!
