Yesterday at ten o'clock I was returning Вчера в десять часов я возвращался
home after the concert. домой после концерта.
We were discussing the plan of our work На собрании мы обсуждали план
at the meeting. работы.
The car had nobody in but the engine В машине никого не было, но
was running. мотор работал.
When the boy was playing in the yard Когда мальчик играл во дворе, он
he lost his mittens. потерял свои варежки.