Мне нужно дополнить вопросы и ответить на них например: 1) are nick and peter brothers? 2) nine? 3) nine, too? 4) and nick from london? 5) and nick singers?

2)Is Peter nine(years old)?-Yes,he is/-No,he isn`t
3)Is Nick nine(years old),too?-Yes,he is/-No,he isn`t
4)Are Peter and Nick from London?-Yes,they are/-No, they aren`t
5)Are Peter and Nick singers?-Yes,they are/-No, they aren`t