21.   British Airways have two flights a day to Bangkok, and there are onward flights to Phnom Penh.

22.   Delayed flights have a ripple effect.

23.   Just one late flight could be carrying passengers for a dozen connecting services.

24.   Flight is the form of locomotion that puts the greatest demands on muscles.

25.   This flight was more gruelling than I had expected.

26.   The flight was very bumpy.

27.   Our flight was very smooth.

28.   The flight is about to begin boarding.

29.   If our flight is late, we will miss our connection.

30.   NASA argued, however, that the flight had been an important step in the development of the proposed Freedom space station.