Расскрыть скобки в правильной форме:he boys (to play) on the field

Расскрыть скобки в правильной форме:he boys (to play) on the field while the girls (to talk). All of them (to enjoy) the evening. Then they suddenly (to hear) a sound of storm. It (to mean) that their picnic (to be) over. We (to watch) the movie when the doorbell (to ring). We (not\to expect) anyone. These (to be) our neighbors who (to come) to congratulate my mother with winning the prize of the best cook of the town. They (to work) in the garden when it (to start) to rain. They (to decide) to wait when it ended. But it (to seem) like it (to be) going to last forever.