.When I ____(enter),the ____(sit) around the table and_____(

.When I ____(enter),the ____(sit) around the table and_____(talk) quietly.
2.When I ____(hear)the noise,I _______(go) to the door and ________(hide)behind it.
3.Yesterday evening,while people _____(dance),the roof_________(collapse)and many people______(injure)in the accident.