Complete the sentences with the correct word

• irrigation
• reward
• species
• retirement
• lifetime
• time-wasting
• treatment
• blindness

1. Water is pumped from the huge reservoir for the [ ]
   of the farmers' land.
2. Sandra's mum took her on a shopping trip as a [ ] for passing
   her exams.
3. There are several hundred different [ ] of trees in the forest.
4. Since his [ ] at age 65, Robert has mostly spent his days
   gardening, reading and generally taking it easy.
5. Joining the volunteer programme in Africa was the chance of a [ ] for David.
6. Mr Smithers accused Joe of [ ] because he was taking too long to finish the project.
7. Many people in the developing world are not getting the medical [ ] they need.
8. Hilary's [ ] was caused by a serious infection in her eye when she was a baby.