Turn from Active into Passive.1. People often use this common phrase in such cases.2. Even laymen must know the foundations, the scope and the role of mathematics.3. In each country, people translate mathematical symbols into peculiar spokenwords.4. All specialists apply basic symbols of mathematics.5. You can easily verify the solution of this equation.6. Mathematicians apply abstract laws to study the external world of reality.7. A mathematical formula can represent interconnections and interrelations ofphysical objects.8. Scientists can avoid ambiguity by means of symbolism and mathematicaldefinitions.9. Mathematics offers an abundance of unsolved problems.10.Proving theorems and solving problems form a very important part ofstudying mathematics.11.At the seminar, they discussed the recently published article.12.They used a mechanical calculator in their work.13. One can easily see the difference between these machines.14.They are checking the information.1615.The researchers have applied new methods of research.16.They will have carried out the experiment by the end of the week.