Question

The most important thing in life are making money, traveling aboard , and to live well.

are begin used correctly

I feel like the word should be replaced with the word is?

Answer 1

This sentence needs a parallel structure. Since two phrases in the last are gerund phrases -- making money, traveling abroad -- the last one must also be a gerund phrase.

Change "to live well" to "living well."

Answer 2

long before his death, Pablo Picasso became the most important artists in history. which word is not used correctly.