1) Thomas Cook organised/ has organised the first tour in 1841.

2) Pathfinders wasn’t/ hasn’t been the first to offer tailor-made holidays.

3) He worked/ has worked in the travel industry since 1996.

4) When did you start/ have you started working for Kuoni?

5) Customers became/ have become more demanding in the last few years.

6) The number of bookings fell/ has fallen since the accident.

7) So far we had/ have had a very successful season.

8) Visitors from the USA increased/ have increased by 8% since the last year.

9) We started/ have started offering tours to Mexico two years ago.

10) Many operators put/ have put their prices up lately.

1) Thomas Cook organised the first tour in 1841.

2) Pathfinders wasn’t/ hasn’t been the first to offer tailor-made holidays. If PATHFINDERS still exists, 2nd option; if not, 1st

3) He has worked in the travel industry since 1996.

4) When did you start/ have you started working for Kuoni? Both posible, perhaps 1st option preferrable

5) Customers became/ have become more demanding in the last few years.

6) The number of bookings has fallen since the accident.

7) So far we have had a very successful season.

8) Visitors from the USA have increased by 8% since the last year.

9) We started offering tours to Mexico two years ago.

10) Many operators have put their prices up lately.