False. Pretty much everything requires attribution/citation, except for original ideas. :)
13) Leave a message
14) High school
15) Appreciation
Le escribe Rolando un mensaje electronico a miguel?
answer: No, Rolando no le escribe un mensaje electronico a miguel.
I don't know if you need to write the answers on a negative way(words like no, never, etc) but on the first question give you details to how answer a questions in a correct way.
Ex. le compras una camisa a tu novio? No, no le compro una camisa. (negative way) you need to read carefully all the sentences to see the correct way to answer.
Hope this helps, good luck.
Answer:
In my opinion Spanish is a language humans should learn.
Explanation:
Spanish is a commonly used language and if humans want to communicate better we should learn Spanish.