1. He explained that they used new materials, so the device became more reliable.
2. She said that she went to work in France last summer and quickly learned French there.
3. I was asked if we would take a tour of the plant in the near future to see the work of the new computer equipment.
4. The teacher told the students that the design, construction and operation of the laser system is a great technological achievement.
5. We knew that Russian scientists had developed special laser systems to conduct physical experiments with laser beams.
6. The student reported that he wrote an article about his work.
7. He explained that his laboratory’s research is closely related to practice, so the results are always good.
8. The students said that they did not know about the upcoming lecture on nanotechnology problems and did not go for it.
9. The teacher told the students that modern computers are used for thermodynamic calculations.
10. I was asked how much time I spent learning new words from the third lesson.
11. She said she knew several foreign languages, since every summer she spends 1 or 2 months in the country of the language she is studying.
12. We did not know whether we would have the practice next summer.