Найдите и выделите в предложениях подлежащее и сказуемое. определите время сказуемого. 1) the organization of the crew of a cargo ship is changing. 2) the harbours of the island served as convenient ports. 3) all permanent housing above the main deck is a superstructure. 4) the third mate will make entries into the logbook.
2-the harbours-подл., served-сказ.(Past Simple)
3-housing-подл., is-сказ.(Present Simple)
4-mate-подл., will make-сказ.(Future Simple)