Question

A forma negativa gramaticalmente correta para "The camera uses an optical system" é:
a-The camera hasn't used an optical system.
b-The camera doesn't use an optical system.
c-The camera didn't use an optical system.
d-The camera won't use an optical system.
e-Outro:

Answer 1

Resposta: Oi, eu não tenho certeza, mas eu acho que é a alternativa b