Answers

2 – crossword

 solution

3 – reading comprehension

1 – 14 for every billion rpk.

2 – revenue passenger kilometer . 1 rpk = 1 passenger carried 1 km.

3 – stress, anxiety, jet lag, low pressure, and dry air.

4 – ear and sinus pains, decompression sickness, enhancement of the effects of alcohol.

5 – a training that gives non pilots some basic theoretical and practical knowledge to land an airplane if the pilot is incapacitated.

4 – listening comprehension

Engine out, part 2 

5 – grammar

1 – whose, 2 – who’s, 3 – it’s , 4 – whose, 5 – who’s, 6 – it’s, 7 – who’s, 8 – who’s, 9 – its, 10 – whose.