ПОставьте в вопросительную и отрицательную форму We have mathematics…

We have mathematics today. Have we mathematics today? We haven"t mathematics today.I have a sister. Have I a sister? I haven"t a sister.My friends has English books. Has my friends English books? My friends hasn"t English books. They had friends in Moscow. Did they have friends in Moscow? They did"t have friends in Moscow.