or adverbs.
1. Many people study foreign languages to read books ___ the original.
2. English is the language ___ diplomacy.
3. This book is written ___ English.
4. Many people use English ___ a second language.
5. It is a necessity ___ any scientist to study a foreign language.
6. In English there is a large number ___ exceptions ___ any rule.
7. ___ the centuries the palace has been ruined.
8. In Russian adjectives change according ___ the noun.