1. 然而这么做的话，我们可能会引发一些问题。

However, by __________ so, we may __________ some problems. (doing, cause)

2. 很多年以前，快递并不是那么的受欢迎，现在她成为人们接受网上产品的主要配送方式。

Many years ago, express delivery is not that __________ ; now

it becomes the __

________ for people to __________ online products. (popular, main way, receive)

3. 有些中小学规定不允许学上把手机带到学校。

There are some primary schools and secondary schools stating that students are __________ the cellphone_

_________ school.(not allowed bring, to)

二、书面表达。

前天你所在的班级就学生的作业问题展开了一次讨论：许多学生认为做作业很有好处，而部分学生不这样认为。请根据以下提示用英语写一篇简要的介绍，并表明你自己的观点。

参考词汇：It’s good to do…, review, solve, problem, duty, too…to…

solve, problem, duty,

too…to…