短文境空 ，根据短文内容, 用括号内单词的正确形式填空。
One Sunday afternoon, when Henry {#blank#}1{#/blank#} (swim) in his swimming pool, his friend Jack came to visit him.
“Wow! Henry, you have changed much these days. You are a sportsman now!” said Jack.
“Well! Maybe in a couple of years.”{#blank#}2{#/blank#} (answer) Henry
“Do you swim every day?” asked Jack.
“Yeah. You know I get fat easily” Henry replied, “Now swimming {#blank#}3{#/blank#} (become) part of my daily life already ! It makes me happy and{#blank#}4{#/blank#} (keep) myself fit.”
“Sounds great! I {#blank#}5{#/blank#} (start) swimming tomorrow. After all, I'm too fat."said Jack,
