REVIEW EXERCISE - 5.67

1. The attitude toward aviation in America was one of great interest little interest immediately following World War I.
2. The natural barrier the NC-4 overcame was the Pacific Ocean Indian Ocean Atlantic Ocean Arctic Ocean .
3. Barnstormers were, for the most part, former military airline pilots.
4. Alcock and Brown were the first men to cross the Atlantic Ocean nonstop island to island .