1、 He is working at one of the largest companies in America.
(注意:最大的公司一般用large 形容其规模 而不用 big)
2、If you work /study hard , your dreams will be realized.
(注意:dreams come true
achieve one's dreams
realize one's dreams
go for one's dreams
materialize one's dreams 都可以表示实现梦想)
3、Edison is one of the most famous scientists in the world.
4、Robots could do such easy jobs while they don't feel boring.
5、It is not easy for him to learn math.
(注意:千万不能用汉语的语序进行翻译 用 It is adj for sb to 的句型)