阅读下面材料，在空白处填入一个适当的词（1个单词）或括号内单词的正确形式。 My father {#blank#}1{#/blank#}( work) in an office. There {#blank#}2{#/blank#} two large windows in it. One day, a woman in a {#blank#}3{#/blank#}(pass) car looks up and sees my father. My father waves his hands, {#blank#}4{#/blank#} the woman waves back. This gives my father an idea.
Later, he changes his way of {#blank#}5{#/blank#} ( greet) people. He writes signs, like “Hello” {#blank#}6{#/blank#} “Be happy”. Every afternoon when people go home from work, my father will greet them with the signs. Then they will give my father big smiles.
The day when I come into the world, my father puts a sign {#blank#}7{#/blank#} the window, “I'm a new father!” To his {#blank#}8{#/blank#} (surprise), some of people hold a sign saying, “Congratulations!”
My father learns the {#blank#}9{#/blank#} ( true) in the saying, “You smile, and the whole world smiles with you.” And he becomes {#blank#}10{#/blank#} first one who greets strangers with signs every day.
