With english? check and with questions?

11.B because it is giving us information and helping us learn some stuff.

12. B. (ur right) cause the outline refers to a play.

13. B cuz u need to do tat in the final draft.

14. A cuz if u read the outline and  understand it you will see that a does mean those stuff.

15. A cuz the topic can be different form their pint of view.

Hope I helped ya! 

First One is correct. Because the Intro always has the grabbing sentences, which grabs the readers attention.
Second One is correct. Because its broadly about a small play.
Third one is revising the overall structure and flow of your writing because editing is corrections. 
The fourth's answer is the third choice. Because the fire triangle led to more improvements.
The fifth is the first one. Because when readers read the essay, some may no nothing, and that may not matter. 

China plays a major role in population and china is also a well developed country