1. Some understanding of grammar is fundamental _______learning a language.
2.  The university authorities responded swiftly ______students' demand for more new courses.
3.  Some teachers have more control _____pupils than their parents have.

4. She said that she was optimistic ______the future of the company.

5. Most people will probably be cheering _____their favourite players.
6. You'd do well to rid yourself ______those romantic notions.