Add the tag endings . its nice to invite British students , ? you are responsible for a social programme , ? they didnt

1) It is nice to invite British students, isn\'t it? 2) You are responsible for a social programme, aren\'t you? 3) They didn\'t arrange a date of the competition, did they? 4) It was a group of 17 students, wasn\'t it? 5) Shell stays with her pathers family, doesn\'t he? 6) The accommodation cost weren\'t very high, were it?