1) We checked on /in at the last moment, half an hour before our flight. 2) The old lady got into/on the car and drove away. 3) We got on/in the train in a huge city and got off at a small local station in the hills.
4) I'm going out/away on holidayn next week. 5)Please help me put up/ on the tent quickly before it starts raining. 6) We have to set on/off early tomorrow. 7) The plane took out/off and in few minutes we were above the clouds.