What do the singer Alanis Morissette, the supermodel Gisele Bundchen and the ex-Secretary General of the United Nations Kofi Annan all have in common? The answer is, they all have a brother or sister who was born on the same day as them – a twin. And what links actresses Julia Roberts, Geena Davis and Holly Hunter? They all have twin children. - See more at: https://learnenglish.britishcouncil.org/en/magazine-articles/twins#sthash.GTWZwLP9.dpuf