Fill in the gaps with suitable prepositions or adverbs where necessary: 1. The plant's operators decided to shut____the reactor. 2. Differences___ people's earnings depend____ a wide variety____ factors. 3. This trend will raise a number_____ issues relating___ the economic concerns____ the country. 4. Huge advances______ the development_______ technologies have substantially facilitated the production process. 5. The invention _____ printing______ the 15th century completely changed the world 6. The deal involved the supply_____ forty new aircrafts____ the airlines. 7. The town was turned_____ a flourishing seaside destination.
1. - 2. between, on, of 3. of, to, in 4. in, of 5. of, in 6. for, at 7. by