Question

formas negativa e interrogativa de :
the studentes have classes every day
those giraffes are very tall
the exercise is very easy

Answer 1

interrogativa: do the students have classes everyday?
negativa: the students don't have classes everyday.

interrogativa: are those giraffes very tall?
negativa: those giraffes are not (aren't) very tall.

interrogativa: is the exercise very easy?
negativa: the exercise is not (isn't) very easy.