"The boy eats cheese."
Translation:Il ragazzo mangia formaggio.
I've found that, when in doubt, replacing the subject with the corresponding pronoun helps me use the proper verb congugation. So, for example, by replacing "Il ragazzo" with "Lui" (He) the conjugation of mangia make more sense. The same way you would say "i cavalli (or Loro- THEY) mangiono" and not mangi.
In the same skill: 'They eat beef' my answer was 'Loro mangiano manzo' and it was marked wrong; the correct answer: 'Loro mangiano il manzo'. Naturally I patterned my answer after that 'Il ragazzo mangia il formaggio'. Guess what, it was marked wrong. So tell me, what is going on?????