Раскройте скобки и употребите глагол-сказуемое в нужной форме (Past Simple, Past Continuous, Past Perfect Activ Voice).Предложения переведите.
1.I (to dream) when the alarm-clock rang.
2.When the gate (to open) the crowd (to walk) in.
3.When be (to start) telling the joke I realized that I (to hear) it before.
4.George didn't want to come to the movie with us because he already (to see) the film twiee.
5.While I (to work) in the garden I heard a strange noise.