Acknowledgements
Editorial Management: Pablo Fernández de Córdoba and Isabel Gallardo
Freelance Editing: Paula González Fernández
Production Project Coordinator: Nikhita Chiranjeevi
Book design and page make-up: Pentacorbig and Darío Pérez; Blooberry Design; We Are Bold
Cover design: Chefer and Abel Gantoff Sosa; Blooberry Design; We Are Bold
Audio recordings: Kite Recording Studio; Bendito Sonido; Ian HarKer and Robert Lee
The authors and publishers acknowledge the following sources of copyright material and are grateful for the permissions granted. While every effort has been made, it has not always been possible to identify the sources of all the material used, or to trace all copyright holders. If any omissions are brought to our notice, we will be happy to include the appropriate acknowledgements on reprinting and in the next update to the digital edition, as applicable.
Key: U = Unit
Vocabulary Worksheets
All the photos are sourced from Getty Images.
U2: Nosyrevy/iStock/Getty Images Plus; KeithBishop/DigitalVision Vectors; sabelskaya/iStock/Getty Images Plus; jameslee1/DigitalVision Vectors; Vect0r0vich/iStock/Getty Images Plus; Olga Kurbatova/iStock/Getty Images Plus; eliflamra/iStock/Getty Images Plus;
Abhijeet Sharma; Achinto Chatterjee; Danish Zaidi; Ishan Varma; José Antonio Rubio; Jesús Alonso; Pabo Rosendo.
Grammar Worksheet
Abhijeet Sharma; Achinto Chatterjee; Danish Zaidi; FLP; Graham Kennedy; Gwyneth Williamson; Ishan Varma; Jesús Alonso; Jo Taylor; José Antonio Rubio; Ken Oliver c/o The Art Agency; Lisa Smith c/o Sylvie Poggio; Pabo Rosendo; Theresa Tibbetts c/o Beehive.
Culture Worksheet
All the photos are sourced from Getty Images.
Chinese New Year: Tanacho/iStock/Getty Images Plus; MIKE CLARKE/AFP; Festival Traditions: Lobro78/iStock Editorial/Getty Images Plus
Festivals
All the photos are sourced from Getty Images.
New Year's Eve: Roberto Ricciuti/Getty Images News; Anadolu Agency; GRAY CLAPHAM/AFP; Johner Images; Saint Patrick's Day: Ani_Ka/DigitalVision Vectors; exxorian/DigitalVision Vectors; Shanina/DigitalVision Vectors; arose373/DigitalVision Vectors; Peace Day: bluebearry/iStock/Getty Images Plus.
Projects
All the photos are sourced from Getty Images.
Clocks and watches of the future: Science Photo Library; Creative Crop/DigitalVision; Creativ Studio Heinemann; Kalulu/iStock/Getty Images Plus; Women Scientists: Bettmann; Donaldson Collection/Michael Ochs Archives; Hulton Archive; Pascal Le Segretain/WireImage; Alberto E. Rodriguez/Getty Images Entertainment; Etienne DE MALGLAIVE/Gamma-Rapho; NASA/Donaldson Collection/Michael Ochs Archives; Francis Tsang/Cover; Fotonoticias/WireImage.
La Cosmonauta
Home Booklet
p. 7 (apple): Pamela Webb/EyeEm/GettyImages; p. 7 (egg): Elisabetta Tresoldi/EyeEm/GettyImages; p. 7 (teapot and cup): akinshin/iStock/Getty Images Plus/GettyImages; p. 7: SPPhoto/Shutterstock; p. 10 (barbecue): Aleksander Zakshevsky/EyeEm/GettyImages; p. 10 (mint): Jessica Peterson/GettyImages; p. 10 (olive oil): fcafotodigital/E+/GettyImages; p. 10 (chicken): annick vanderschelden photography/Moment Open/GettyImages; p. 10 (salt shaker): 4kodiak/E+/GettyImages; p. 10 (bowl): RedHelga/E+/GettyImages; p. 10 (toothpicks): Subin Chaingnoon/EyeEm/GettyImages; p. 10 (charcoal): deepblue4you/E+/GettyImages; p. 13 (running): wundervisuals/ E+/GettyImages; p. 13 (skating): JOHN MACDOUGALL/AFP/GettyImages; p. 13 (cheerleaders): NCAA Photos/GettyImages; p. 13 (breakdance): Raquel Maria Carbonell Pagola/LightRocket/GettyImages; p. 16 (dinner):Stockbyte/GettyImages; p. 16 (drinking water): Peter Cade/The Image Bank/GettyImages; p. 16 (homework):Elisabeth Schmitt/Moment/GettyImages; p. 16 (girl running): Adrian Weinbrecht/Cultura; p. 16 (smartwatch): Bloomberg/GettyImages; p. 19 (ambulance): deepblue4you/iStock/Getty Images Plus/GettyImages; p. 21 (newspaper): Seamni/ Getty Images Plus/GettyImages; p. 21 (encyclopedia): Fyletto/Getty Images Plus/ GettyImages; p. 21 (stamp): Gary Ombler/Dorling Kindersley/GettyImages; p. 21 (laptop game): scanrail/Getty Images Plus/GettyImages; p. 21 (electronic reader): AleksVF/ iStock/Getty Images Plus/GettyImages; p. 21 (mobile): Grassetto/iStock/Getty Images Plus/GettyImages; p. 21 (web design): scyther5/iStock/Getty Images Plus/GettyImages; p. 22 (statue): De Agostini/A. Dagli Orti/GettyImages; p. 22: age footstock/Alamy; p. 22: © Heritage Images/Corbis; p. 25 (recycle bins): ian600f/iStock/Getty Images Plus/GettyImages; p. 25: Fotografi che/Shutterstock; p. 25: Coffee Lover/Shutterstock; p. 25: Terry J Alcorn/Getty Images; p. 25: Maciej Sojka/Shutterstock; p. 28 (planet): SCIEPRO/Science Photo Library/GettyImages; p. 28 (astronauts): fStop Images - Caspar Benson/Brand X Pictures/GettyImages; p. 31 (firework): Abhijit Patil/EyeEm/GettyImages; p. 31: Adam J/Shutterstock; p. 31: James Brey/Getty; p. 31: Renata Apanaviciene/Shutterstock; p. 31: Mohammed Anwarul Kabir Choudhury/Alamy.
Front cover photography by Johan Larson/Shutterstock; maxpro/Shutterstock; Edrich/Shutterstock; Alex Staroseltsev/Shutterstock; guteksk7/Shutterstock;irin-k/Shutterstock