1.  Though studying English words on the seeming endless word list or wordbook is indeed a boring and dull job, I have to say that if you are really absorbed in memorizing English words, you will benefits a lot without fail.

2.  These are skills that will benefits in all kinds of different careers.

3.  Since the course is useful only for those who need to read fast, such as secretaries and editors, other employees will benefits little from it.