1) Put in a/an or the: … Captain ordered … crew to unload … vessel.
2) Use correct prepositions: One hot summer morning we decided to take a trip … our car … the city … the ocean. We got … the car and drove … the highway.
3) Put the following into the Passive Voice: The manufacturers can deliver the machine at the end of the month.
4) Put the verbs into the correct tense: The schoolchildren (enter) the classroom ten minutes after the bell (ring).

1. the the the2. in to near/by into along3.the machine can be delivered by the manufatures at the end of the month.4. entered, had rung