Ответ:
Task 1.
1. networking (abstract noun)
2. boyfriend
3. motorcycle
4. something (abstract noun)
5. headquarters
6. heartbreak (abstract noun)
7. friendship (abstract noun)
Task 2.
1. His networking skills were the best in the business.
2. Nina has moved in with her boyfriend.
3. Do you use bus, bicycle, or motorcycle?
4. She wears something different every day.
5. The company's national headquarters is in Norway.
6. He won't suffer such heartbreak again.
7. I value our friendship above anything else.