Fill in with past simple and/or past perfect simple.
1 By the time they ________________ (realize), it ________________ (be) too late
2 When I ________________ (finish having a shower) the film ________________ (already start)
3 I ________________ (call) my mother but she ________________ (already leave)
4 Who would have ever thought mobiles were so useful? I ________________ (never realize) how dependable one can become of these devices!
5 I’m really sorry. I ________________ (tell) him not to climb over the book-shelf a million times but your son is really a handful
6 The day ________________ (commence) bright and shiny but once I ________________ (put on) the news it just ________________ (go) down
7 The experts ________________ (predict) heavy rainstorms over the valley for the weekend but it simply ________________ (not happen)
8 It is an honest mistake but Mayans ________________ (long disappear) before the Spaniards ________________ (arrive) in the Yucatan Peninsula
9 Why ________________ (not you tell) me before? I could have helped you out!
10 Edison ________________ (invent) tons of «failed» ways of creating a light bulb before he ________________ (come up with) the only one that ________________ (work) at that time