I asked many classmates and friends, “What do you think you will be1you grow up?”2of them told me what they would like to be in the future,3others said, “I don't know.” I'm4to hear that because I think it's bad. I think5dreams or hopes about the future will help us do better at school.

    6middle school students, it's time for us to7what we want to be in the future. If we know it better, we will know8to do it better at school. For example, if you are outgoing and like to meet people, you can be a9in the future. Then you should practice10more articles. If you're11with children and like12, you can teach English as a job in the future. And then you should work harder13English. If you want to14many interesting places, you can be a guide.

    Of course, all the15that we are learning at school will be useful in the future, so we should work hard at all of them.

观察下列等式：3¹=3，3²=9，3³=27，3⁴=81，3⁵=243，3⁶=729，3⁷=2187…解答下列问题：3+3²+3³+3⁴…+3²⁰¹³的末位数字是

将下列句子改为陈述句。

①不好好学习，怎能取得好成绩呢？

②对少数同学不守纪律的现象，我们怎能不闻不问呢？