1.He is neither in the library nor in the laboratory. He must be in the fitness room. 2. You can choose A or B, or both. 3. He not only got rich himself, but also helped others to get rich. 4. He is not only a writer, but also a musician. 5. He is neither a writer nor a musician. 6. He is either a writer or a musician. 7. Turkey is a writer and musician.