Поставьте в вопросительную и отрицательную форму we have mathematics today. i have a sister. my friends has english books. they had friends in moscow.

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.