阅读下面材料,在空白处填入一个适当的内容(1个单词),或括号内单词的正确形式。 As we all know, it is very important to keep healthy. But do you know{#blank#}1{#/blank#} to keep healthy. Firstly, I think we must have enough food to keep{#blank#}2{#/blank#} (we) energy for breakfast. We must also have the right kind of food. Remember to eat {#blank#}3{#/blank#} (many) fresh fruit and vegetables but less junk food. Don't forget to wash your hands{#blank#}4{#/blank#} meals. Secondly, it's necessary for us{#blank#}5{#/blank#} (take) exercise. Exercise will keep us active and strong. {#blank#}6{#/blank#} (third), I think staying up is bad for our health. {#blank#}7{#/blank#} we can't get enough sleep, we may have a headache. We should go to bed early{#blank#}8{#/blank#} get up early. Lastly,{#blank#}9{#/blank#} (listen) to music or chatting can also make us{#blank#}10{#/blank#} (feel) relaxed.