补全短文 Ben is my friend, he is popular in his class. He can{#blank#}1{#/blank#}(弹奏）the piano very well and is ready to teach others to learn it . He likes playing basketball very much and sometimes cheers the {#blank#}2{#/blank#}(运动员) of his favorite team on weekends with other fans.
He thinks the {#blank#}3{#/blank#}(交通）is very heavy and the air is not{#blank#}4{#/blank#}(新鲜）any more, It's very dirty. So he usually{#blank#}5{#/blank#}(骑) his bike to school, it takes him an {#blank#}6{#/blank#}(小时) . When it rains, he has to take the underground to school. He says if {#blank#}7{#/blank#}(每人）starts to do something right, the earth will be better in the{#blank#}8{#/blank#}(将来).
However, he is not {#blank#}9{#/blank#}(小心的）with his school things when he is in a hurry. He always leaves homework at home on weekdays, that makes his teacher very angry . He {#blank#}10{#/blank#}(承诺)that he will take his homework to school next week.
