A) Mr. Oliveira has two sons and a beautiful daughter

     Does Mr. Oliveiras have two sons and a beautiful daughter

?

    Mr. Oliveira doesn't have two sons and a beautiful daughter;

B) we have a very good English teatcher at our school

    Do we have a very good English teatcher at our school

?

   We don't have a very good English teatcher at our school.

C) Roberto has a new bicycle and little cat

     Does Roberto have a new bicycle and little cat

?

    Roberto doesn't have a new bicycle and little cat

D) When it is hot, they have frozen water or limonade to drink

    Do they  have frozen water or limonade to drink when it´s hot?

    They don't have frozen water or limonade to drink when it´s hot.  

E) It's seze o'clock. We have to go home now

.  (SEZE???)

   It´s SEZE o'clock. Do we have to go home now?

   It´s SEZE o'clock. We don't have to go home now.

F) Our friends' relatives have some work to do today

.

   Do our friends' relatives have some work to do today?

   Our friends' relatives don't have any work to do today.

G) We have good places to play and to study at our school.

    Do we have good places to play and to study at our school.?

    We don't have good places to play and to study at our school.

Explicação:

Auxiliares do / does são usados com a maioria dos verbos em inglês, para fazer a interrogativa e a negativa.

Interrogativa com auxiliar DO / DOES

Do usado com I - we - you - they

Does usado com He - she - it

Do / Does + sujeito + verbo original + complemento

     Do           you           work                 tomorrow?

     Does        she           go                     to school?

Negativa com auxiliar DO / DOES (Don't - Doesn't)

acrescenta NOT após o auxiliar

She doesn't work tomorrow.

John doesn't go to work.

I don't have a bike.

Verbo ''ter'' - TO HAVE

HAS - usado com He - she - it

Have - usado com I - you - we - they

She has a bike.

I have a bike

John has two sisters.

My friends have a new house.