1 The flight                 several times last week. was cancel was cancelled has been cancelled cancelled 2 The buttons                   on a coat yesterday. were sewn were being sewn was sewn have was sewn 3 The teacher   ...

1 The flight                 several times last week. was cancel was cancelled has been cancelled cancelled 2 The buttons                   on a coat yesterday. were sewn were being sewn was sewn have was sewn 3 The teacher                    to very attentively while he was explaining a new rule. was being listened has listening was listened was listening 4 The answer              yet. wasn’t being given hasn’t gave hasn’t been given wasn’t given 5 The dessert                              when they came. was serving was being served has being served was served УКАЖИТЕ ВЕРНЫЙ ОТВЕТ