Most people sleep at night, but Frank sleeps during (在……期间) the day and works at night. His work is to guard（守卫） a big {#blank#}1{#/blank#}. Frank likes his work. He knows that it is {#blank#}2{#/blank#} to guard the building at night. If he hears any noise, he goes {#blank#}3{#/blank#} to see what it is. Most of the time he walks around inside the big building, but he also walks around outside. When he is {#blank#}4{#/blank#} he can sit on a chair by the door (门). It is very cold in winter. He always {#blank#}5{#/blank#} a warm coat when he is working.

    Frank used to feel lonely (过去感到孤独) because no one {#blank#}6{#/blank#} with him in the evening. One night when Frank was walking outside, he {#blank#}7{#/blank#} a noise. He went very quietly to the noise to see if someone was there, {#blank#}8{#/blank#} he only saw a small dog. Frank talked to the dog. It {#blank#}9{#/blank#} cold. He took the dog inside the building, and the dog followed {#blank#}10{#/blank#} around happily.

    Now Frank is not lonely. The dog is his good friend.