Resposta :
A) Should he have done this?
B) They must not work together.
C) Do you have to have lunch now?
Resposta:
A) Passe o item A para a interrogativa.
R- Should not he have done that?
B) Passe o item B para a negativa.
R- They don't must work together.
C) O item C para a interrogativa.
R- Do you have to luch now?