Ответ:

1.

1. applied

2. employed

3. practise

4. exercise

5. unfolded

6. have expanded

7. broaden

8. is developing

9. demonstrated

10. proved

11. exhibited

12. displayed

2.

1. out

2. into

3. for

4. to

5. on

6. out

7. in for

8. off

9. in

10. to

3.

1. patiently

2. communication

3. scientists

4. movements

5. privacy

6. presentation

4.

science - scientist - scientific - unscientific

apply - application - applicable - inapplicable

react - reaction - reactivation- reactivity - reactivate - reactive

investigate - investigator - investigation - investigative

succeed - successor - success - successful

Объяснение: