Fill in the blanks with the appropriate active and passive verb forms (present simple, present continuous, past simple, past continuous, past perfect). Julius ________ (buy) an engagement ring to surprise his girlfriend, but it _______ (steal) from him when he _________ (leave) the establishment. He ________ (go after) the thief, who - he found out later - __________ (tell) to rob him. It was his girlfriend all along: she ________ (discover) about his plans and __________ (decide) to make a bigger surprise before him!