Question

Помогите пожалуйста. Очень срочно!

Answer 1

Ответ:

1. The phenomenon of electricity couldn't be observed (by ancient people).

2. The periodical table of elements might be continued in the future (by the scientists).

3. The ancient city of Jericho could be dated to 7000 BC (by the archeologists).

4. Laboratory works had to be done (by the students).

5. X-rays can be applied to solve medical problems (by doctors).

6. An exam in Physics is to be taken on Friday (by us).

7. Technology of safe fuel should be developed (by the modern engineers).

8. Our environment must be protected for future generations (by us).

9. An effective method of transportation had to be found (by people).

10. Artificial intellect can be created (my the engineers).

Объяснение: