Question

Seguindo as normas gramaticais referentes ao SIMPLE PAST, qual a forma NEGATIVA para a seguinte frase- “Scientists discovered that there are other planets in the universe.”
a- Scientists not discovered that there are other planets in the universe
b- Scientists did not discovered that there are other planets in the universe
c- Scientists didn’t discover that there are other planets in the universe
d- Scientists did discover that there are other planets in the universe
e- Nenhuma das alternativas acima

Answer 1

C) scientists didn’t discover that there are other planets in the universe.