In A Picture of Dorian Gray what does Henry Wotton represent?

Hi how are i have some questions about english subject can you answer for me ?

Question 1 translate: i have to eat. question 2 translate: one must study. question 3 to make a good grade, one must pay attention. para sacar una buena nota, prestar atención. question 4 to make money, one must work. para ganar dinero, trabajar. question 5 translate: maria has to talk.

Experiments were conducted to try to teach chimpanzees sign language