Relacionar Columnas KB15 Use of soVersión en línea Use of so. Kid's Box 4 Unit 5 Activity Book por Valeria Itzel Herrera Díaz 1 We couldn't find our books so 2 She couldn't find her phone so 3 She couldn't find her glasses so 4 I couldn't find my camera so 5 He couldn't find his pen so 6 He couldn't find his coat so he had to write with a pencil he had to wear a jacket we didn't do our homework. I couldn't take any photos. she couldn't read her book. she couldn't talk to her friend.