three things to do before the flight takes off

There are three things to do before the flight takes off.

- CORRECT.

First, place your carry-on baggage on the upper shelves.

- CORRECT.

If your baggage is next to your seat, your space will be narrow making you feel very uncomfortable.

- If your baggage is next to your seat, your space will be narrow, making you feel very uncomfortable.

Second, buckle your seat belt and make the seat right.

- CORRECT.

Finally, listen to flight attendants’ instructions. 

- Finally, listen to the flight attendants’ instructions.

it’s helpful when you meet the flight emergency.

- It’s helpful when you have a flight emergency.

If you do these three things, you can have a safe and comfortable flight.

- CORRECT.