高手麻烦看下这几句话有没有语法问题

高手麻烦看下这几句话有没有语法问题
(1)One Sunday my mother (Mother) had (made) me take my little young brother to the a trip to the country.
主要问下那个"to the a trip to the country"这里有没有问题,感觉这里是不是打错了?
(2) I consider this an unchangeable truth.
这里的"this"用得对吗?是不是也可用"it"代替?
(3) Because we all know that we can earn money be work but can not in any way get back time (in anyway).
这里的"be work"用得对吗?感觉好像是"by work"吧.
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这里是原文( (1),(2)是第一篇的,(3)是第二篇的):
第六天：A TRIP TO THE COUNTRY 乡村游记
One Sunday my mother (Mother) had (made) me take my little young brother to the a trip to the country. She bade me take good care of him.
While we were walking along the road, the sun was shining brightly and the breeze was blowing gently. We saw the beautiful flowers smile (smiling) at us and heard the birds sing (singing) their sweet songs on the trees. The scenery was indeed very pretty (beautiful).
When we felt tired, we returned home. We saw Mother (our mother) wait (waiting) for us at the door.
有一个星期日,我母亲叫我带小弟弟去乡村游历.她吩咐我要好好照料他.
当我们沿着道路行走的时候,太阳灿烂地照耀着,微风轻轻地吹着.我们看见美丽的花儿对我们微笑着,并听见鸟儿在树上唱着悦耳的歌曲,风景实十分美丽.
当我们感觉到疲倦的时候,我们就回家了.我们看见母亲正在门口等候我们.
第七天：BE PATRIOTIC 要爱国
It is the duty of every citizen to make the country rich and powerful (To make the country rich and strong is...). In order to accomplish this object one must be patriotic (love his country). I consider this an unchangeable truth.
How can a student love his country (be patriotic)? I find my answer very simple and clear. He must study hard and store up knowledge so as to serve his (the) country in the future. If every student can do according to what I said, the country will certainly be rich and powerful.
要使国家富强是每个公民的责任.为了达到此目的,必须爱国.我认为这是一条不易的定理.
一个学生如何才能爱国呢?我发觉答复很简单明了.他必须用功读书并积储知识以便将来服务国家.如果每个学生能按照我所说的去做,国家一定会富强.
这是在网上找的"42天学好英语"短文中其中2篇,感觉很不错,尤其对写作很有帮助,各位也可以在网上找一找.但其中有些语句不确定对不对,所以请高手帮忙看看咯