2 Write the words in bold in the singular or the plural.
1 Flight attendants have short - for safety reasons. hair
2 I've got some
_in my bag to eat on the plane. fruit
3 I went on over 10 _
last year! plane
4 I'm a security guard, and I really enjoy my -
! work
5 I think
- teach you a lot. trip
6 Heathrow Airport has over 180,000 –
a day! passenger