required to memorize the law

hai guyss... today is law,, law is today.. hehe.. actually, today is the first class for LAW416 after 3 weeks.. my lecturer, Pn. Lili gave us a questions about offer, invitation to treat and acceptance.. it's under chapter 2 (law of contract).. at first,, im look alike blurrr,, because it's first time im study about law.. when I ask the lecturer,, I feel better to answer it.. she gave us two hours to answer it, and after that submit the tutorial..