What question does the adverb clause answer?
So that you can prepare for the final, let's meet in the library to study.
when
where
how
why
under (on) what condition
compare/contrast

different strategies reach different people based on their ability to understand the material. (from personal experience) when writing an argumentative essay write explaining the subject as though your audience never heard of it before and it is just being introduced, then explain why other people hate it also, afterward you would explain why that would be wrong. i hope that : )

if you don't mind posting the paragraph so i could read it that would a lot. (;

16.) true

17.) true

18.) no information in the text

19.) false

20.) no information in the text

i hope this !

because he wants to address citizens immediate concerns