My friend Bob has a large police dog named Jack. Every Sunday afternoon, Bob and Jack have a walk in the park. Jack likes these walks very much.

    One Sunday afternoon, I paid a visit to my friend. I stayed there for a {#blank#}1{#/blank#} time. My friend and I had much more talk with each other than ever before. Soon it was time for them to take a walk in the park. We{#blank#}2{#/blank#}that, so Jack became worried about it. He walked around the room several times and then sat down in front of me and looked at me. But I still paid{#blank#}3{#/blank#} attention (注意) to him. I went on talking with my friend. At last, Jack could not wait any longer. He went out of the room and came back a few minutes {#blank#}4{#/blank#}. He sat down in front of me again. But this time, he held my hat in his{#blank#}5{#/blank#}. Soon I understood what Jack meant and so did my friend.