Пожалуйста , помогите  раскрыть скобки в предложениях :
1 In summer we usually  (to play)  vooley-ball  twice a week
2 Where ( to be ) Kitty? I (not to see) her since morning.
3 She is upset because she ( not to pass) her exams.
4 Do not disturb him he (to work) now.
5 The house they (to buy) is much larger than ours.