• (a)   progress has been made in finding a cure for the disease. (considerable)

• The death toll was (a)   reported at around 250, but was later revised to 300. (initial)

The simplicity and (a)   of Google search engine make it a perfect learning tool. (universal)

• Advertising relies heavily on the (a)   power of imagery. (persuade)

• Food must be prepared in (a)   conditions. (hygiene)

The growing interest in history is clearly (a)   in the number of people visiting museums and country houses. (evidence)

• The law is designed to reward those who conserve and (a)   those who pollute. (penalty)

If your pain continues, you should (a)   your doctor. (consultation)

If you are a student, you can (a)   questions 16–18 since they are not related to education. (omission)