EXERCISE 25. Mind the word order: a) Extend the following sentences with the words given in brackets. 1. Scientists solve problems (complicated, some, mathematical, to, try). 2. Researchers make observations (facts, and, collect). 3. The boundaries have become clear (fields, scientific, between, less). 4. Science has influence on lives (our, great). 5. Technology makes life easier (our, and, work, modern).