By BBC
By Reed, Leanda
By Gemmell, Kathy, Leigh, Susannah
By Alonso de Sudea, Isabel, Isern Vivancos, Maria Isabel, Hardwick, Abigail
By Hawkes, Rachel, Lillington, Christopher
By Turk, Phil, Thacker, Mike
By Laiz, Monica Morcillo, Barefoot, Simon, Mee, David, Thacker, Mike
By Traynor, Tracy
By Sanchez, José Antonio García, Weston, Tony, Laiz, Monica Morcillo, Barefoot, Simon, Guilford, Timothy, Thacker, Mike
By O'Connor, Niobe, Rainger, Amanda, Niobe O'Connor, Amanda Rainger
By Mathews, Marianne
By Clare Mar Molinero, Carol Stanley
By Leigh, Heather, Ortiz-Carboneres, Salvador
By Murray, T.
By Stephen Cartwright
By Wall, Richard, Platt, Sue
By Saulles, Janet De
By Anderson, Andrew
By Creighton, Neil
By Buckby, Michael, etc.
By Educational Experts
By Collins Dictionaries
By Mike Thacker, Monica Morcillo
By Amiot-Cadey, Gaelle
By Ellis, Martyn, Martin, Rosa
By Hakanson, U., etc., Masoliver, J., Beeck, H L