阅读下面短文，按照句子结构的语法性和上下文连贯的要求，在空格处填入一个适当的词或使用括号中词语的正确形式填空。Every time I see people riding bicycles on the street, I always think of the time I spent on my grandpa's old bike.
When I was little, my grandpa looked after me because my parents were both busy with {#blank#}1{#/blank#} (they) work. At that time, only a few people {#blank#}2{#/blank#} (have) bikes in our small town. Most people usually walked around {#blank#}3{#/blank#} foot. I still remember how happy I were to buy the {#blank#}4{#/blank#} (one) bike with my grandfather. And from then on, I went to school on Grandpa's bike! {#blank#}5{#/blank#} the bike was moving forward, it made some funny sounds that made me laugh. I always hugged my grandpa and sang songs {#blank#}6{#/blank#}(happy). Grandpa turned back again and again {#blank#}7{#/blank#} (make) sure my little feet would not get caught into the wheel. Grandpa was so careful {#blank#}8{#/blank#} I never got-hurt.
What {#blank#}9{#/blank#} sweet moment it was! Now I am working in a big city and I miss my grandpa a lot. I wish I could return to those old {#blank#}10{#/blank#} (day).
