Откройте скобки употребляя Past Perfect для обозначения предшествующего действия и Past Simple для действия последовашвшего за ним
1.When I (to come) to the port the ship already (to leave)
2.When teacher came we already (to do) all exercises
3.When the Boatswain(to come) the sailors (to finish) painting the deck
4. After I (to visit) the Kremlin I ( to write) a letter to my friend about my tour
5. After the pilot (to arrive) the ship ( to enter )the port
6.After the sailors(to clean) the holds the dockers (to begin) loading
7. Before I ( to enter) the college I (to live) in Russia
8. Before you (to come) I (to see) a nice film on TV
9. We(to work) hard before we (to go) on our first shipboard training.