Which phrases in the following sentences are used as adjectives and
which phrases are used as adverbs?
Change these phrases to adjectives or adverbs, if you can think of any
that express the same meaning.
1. Men lived _in caves_ long ago.
2. Man's discovery _of fire_ was the beginning _of industry_.
3. _After this discovery_, men lived _in groups_.
4. The work _of the world_ is done _by machinery_.
5. The workers _of Europe_ were betrayed.
6. They are fighting _for their country_.
7. The struggle _for markets_ is the cause _of war_.
8. The history _of the world_ records the struggle _of the workers_.
9. The idea _of democracy_ is equal opportunity _for all_.
10. The invention _of the printing press_ placed knowledge _within the
reach_ _of the masses_.
11. If you will study _with diligence_ you can learn _with ease_.
12. This knowledge will be _of great value_ _to you_.
13. Diplomacy means that the plans _of nations_ are made _in secret_.
14. The men _in the factory_ are all paid _by the month_.
15. They are afraid to take a trip _through Europe_ _at this time_.