Выберите правильный вариант:

1.You are a future Master, ..?
a. aren’t you
b. don’t you
c. are you
2.There is a lecture in History in our time-table today, …?
a. is there
b. isn’t there
c. isn’t it
3.There was nobody in the room, …?
a. wasn’t there
b. was there
c. wasn’t it