根据汉语完成句子,每空一词。 1. 自从去年以来,那些学生就在踢足球。 The students have been ___________ football ___________ last year. 2. 昨天晚上你们做作业多长时间? How long __________ you ___________ your homework last night? 3. 歌手们唱歌的目的是为慈善机构筹集资金。 The singers are singing to __________ money __________ the charity. 4. 我们学校有一百五十多名教师。 There are __________ __________ a hundred and fifty teachers in our school. 5. 如果我成为一名律师,我就能帮助人们。 If I __________ a lawyer, I will be bale to help people.