Choose the correct form of the Participle. 1. (to name) geometric ideas we usually use letters of the alphabet. 2. We insisted on the (to follow) notation of the geometric object. 3. (to divide) both the numerator and the denominator by х you will get the following expression. 4. When (to speak) with my science adviser I got better understanding of the latest development in my special field. 5. The properties of the material (to use) in the experiment now are given in the latest article. 6. The advantages of the new system (to prove) by many tests are very important. 7. Two angles (to have) the same vertex and a common side are refered to as adjacent angles. 8. The concepts (to introduce) at the seminar should be considered in detail. 9. The (to obtain) difference must be checked carefully. 10. The (to expect) result must prove that this law holds for similar cases.

1. For the name of geometric ideas, we usually use the letters of the alphabet. 2. We insisted on the following designation of a geometric object. 3. Dividing both the numerator and denominator by x gives you the following expression. 4. When talking to my supervisor, I had a better understanding of the latest developments in my special field. 5. Material properties for use in the experiment are now listed in the last article. 6. The advantages of the new system to prove by many tests are very important. 7. Two angles having the same vertex and a common side are called adjacent angles. 8. The concepts introduced at the seminar should be considered in detail. 9. The difference to receive must be carefully checked. 10. The expected result must prove that this law holds for similar cases.