Complete the sentences with the correct question tags. 1)football was known hundred of years 2)surfing isn*t popular in 3)he has been going in for athletics for five years 4)his cousin doesn*t do

1) Football was known hundreds of years ago, wasn't it?
2) Surfing isn't popular in Ukraine, is it?
3) He has been going in for athletics for five years now, hasn't he?
4) His cousin doesn't do judo, does he?