I want to know your opinion, can you give me it, please?

[أطياف السماء]

Introduction:
On Location is organized into three levels that teaches high-school English learners to read and write non-fiction.
I'm going to do a study about " on location " book for my English project and I need Your help by answering these questions.
Note; " The answer should be in English "
1) Why do you think that we should learn English language?
2) You had read the introduction about " on location " above, do you think it is useful? Why ?
3) If you had tried another syllabus, give me a compare between " On location " and yours?
4) On your opinion what is the best thing that the high school syllabus book should talk about ?
5) Do you have any situation that reminds you of studying English ?

Thanks for your help and be sure that your opinion is important for me