Commonly Confused Words Quiz 14 1. He drove _____ a red light. tough though through thorough 2. That's possible, _____ not likely. tough though through thorough 3. It's been a _____ year for our family. tough though through thorough 4. The company lost the order _____ production delays. tough though through thorough 5. You will need a _____ understanding of the subject. tough though through thorough Time's up Commonly Confused Words Quizzes Other Quizzes