同学你好，该知识点来自沪江网校《英语零基础直达大学六级【全额奖学金班】》的课程，想要更系统的学习，欢迎进入课程学习。不仅可以和更多的同学一起学习，而且还有老师、助教随时的学习指导和知识点解答哦。

同学你好~
More companies would be built as well, by this, it would be easy for people to look for jobs.
by this和后面的逗号一起改成and，用连词连接两个句子，而且and可以联结起前后的因果关系。
built改成started

Meanwhile, better foreign policy would be took in the country.
would be adopted 采取，这里也可以用主动语态。

In the questions time, members of the audience asked rude questions for the promises.
question time 一般指的是(在英国式议会机构中的)质询时间
如果是一般的问答时间，可以说in the Q&A sessioin

The politician lost his temper and said that the audience did not deserve more houses and more great schools.
more houses and more great schools 可以改成what he promised

祝同学学习进步~