Questões de Concurso Militar EEAR 2021 para Sargento da Aeronáutica - Controle de Tráfego Aéreo (Turma 2)

Read the following sentences.

I- You and your brother know how to dance, don’t you?

II- The dog and the cat fight a lot, don’t they?

III- Don’t be late, do you?

IV- Let’s dance, won’t you?

    Choose the alternative that contains grammatically correct sentences.