To whom does "their" refer? If you think it refers to "people," then there's one set of meanings. But if you think it refers to "society," there's a whole slew of different possibilities. What do you think?
The arcane abbreviation for your course title is NOT your subject area. Also ... no one here has read your text. Only you can answer this question.
Survey of Economics
"There is no free lunch" = someone pays for it somewhere along the line! Taxpayers? Private entity (charity, business, etc.)? Someone ... http://en.wikipedia.org/wiki/There_ain't_no_such_thing_as_a_free_lunch
The verb should be "were" (plural form). For word substitutions, be sure to check out the thesaurus: http://www.thesaurus.com
looking for a short way to Asia looking for gold and riches
weird strange ridiculous outrageous nonsensical
In that sentence, the subject is "Anny" -- but not "as well as her brother." If you say the sentence without "as well as her brother" would you choose "has" or "have" for that verb? Anny ___ attended the university exam. ??
The words am, is, are are all forms of the verb "be." Which one fits here? There ___ some butter on the plate... And which one fits here? ... there ___ no eggs left in the fridge.
OK. Which form of the verb "to be" would fit in each place? Choose from the following: am is are
I have no idea. What sentence are you trying to put that verb into?