Which sentence uses a formal tone most appropriate to a research paper? Dr. Roscoe's work sheds new light upon the life cycle of
the silkworm. We are so lucky to benefit from Dr. Roscoe's work on the life cycle of the silkworm. I think Dr. Roscoe is the most important researcher to study the silkworm in twenty years. Dr. Roscoe's groundbreaking work on the silkworm stunned all of us in the research community.
A flashback occurs in a passage when the author wants to give information from the past. It can give more detail about a character or an event that happened. It builds on traditional plot structure
