Open the brackets and put the verb into correct form. (use the rule of the sequence of tenses)
1. When we came in the lesson (already/ to begin).
2. We didn‘t know that Nick (to leave) for Murmansk the next day.
3. I couldn’t sleep that night as she(to play) the piano.
4. He knew that Russia (to be) a great marine state.
5. They were informed that the merchant fleet (to be) the leading kind of transport in our country for many years.
6. We were informed that our shipping companies successfully (to compete) on the chattering market.
7. I supposed that the shop (to fly) the Russian flag.