Don't waste money on t______.It's not easy for parents to ma

Don't waste money on t______.It's not easy for parents to ma it isn't right to waste so much money on it .这里的on it 是什么意思. it's not easy grewing up in . I don't want love to destroy m It's not easy to get a t-------for the concert 一道初中8B英语Don't t______ the waste into the river.It can pollut It's not easy for me to learn math. It's not good for parents to s____ their children. it's not good for parents to s______ their childern It's not good for parents to s_____ their children. you may think it's easy for your parents to use them,but it Don't throw waste paper everywhere.It's our duty to keep our You don't have to pay any money,for it's f_______ .这里缺个单词 请问