4. Переведите следующие предложении u определите, к каким частям речи относятся выделенные слова в предложении.
1. This building (houses) a new technical library.
2. Einstein gave all his life to the (increase) of human knowledge.
3. The discoveries in physics (increase) our possibilities in other sciences.
4. Our professor always (answers) all our questions.
5. At the age of 70 Einstein still looked for the (answers) to new secrets of time and space.