The correct answers for each blank are as follows:
- A (e) aircraft mechanic repairs a jet engine while the
- (c) air traffic controller checks schedules and charts to plan the journey. When they are ready, the
- (c) air traffic controller informs the pilot which runway to depart from. During the flight, the
- (b) copilot assists in the cockpit.
So the complete text would be:
A(n) aircraft mechanic repairs a jet engine while the air traffic controller checks schedules and charts to plan the journey. When they are ready, the air traffic controller informs the pilot which runway to depart from. During the flight, the copilot assists in the cockpit.