Tasks 8, 9 and 10

Task 8

1. Caused
2. Repeated
3. Provide
4. Collected
5. encountered

Task 9

1. Considerable
2. Obtained
3. numerous ; encouraging
4. Consequences
5. Rather
6. Promising
7. Uncertain
8. Gather around

Task 10

1. There is no university entrance if the exam is going to be a failed one.
2. Many possibilities exist for the causes of deformation, such as ..
3. The difference between these two processes can be easily observed.
4. Gradually, a small amount of ammonium dichromate is added to the gelatin solution.
5. These special taxes have been approved in six states: Illinois, Iowa, Ohio, California, Nevada and Arizona
6. The subjects have not experienced difficulties with the task.