Question

1. In the 1920s, crowds around the United States were drawn by stunt pilots that were known as barnstormers.

Answer 1

Here are a few improved versions:

- "In the 1920s, crowds across the United States were drawn to stunt pilots known as barnstormers."
- "In the 1920s, barnstormers—stunt pilots—drew crowds across the United States."
- "During the 1920s, stunt pilots known as barnstormers attracted crowds throughout the United States."

Notes: use "who" (for people) instead of "that" if you want a relative pronoun ("pilots who were known…"), and "drawn to" or "attracted" is more natural than "drawn by" in this context.