Rewrite the sentences, leaving out words where possible.

1. You can check those answers and l'll check these answers.
2. The groups need to give a presentation, but they can decide when to give it.
3. Some students study by writing notes and others study by reading aloud.
4. We don't have to look at the research notes, but we could look at them.
5. My brother stays up late, but I prefer not to stay up late.
6. judge the projects and decide on the best project.