Completa la frase con: in / at / on
Ejemplo My birthday is _____ June.1 de 5 We leave for Paris _____ Monday.2 de 5 My phone is not _____ my bag.3 de 5 He was born _____ 1990.4 de 5 Please sign _____ the bottom of this page.5 de 5 The conference starts _____ January 12th.