Grammar Quiz 17 1. No one _____ the answer. know knows known knowing None 2. Suddenly she _____ that something was terribly wrong. know knows known knew None 3. Little did he _____ that I was sitting right next to him. know knows known knew None 4. _____ Ben, we could be waiting a long time. Know Knows Knew Knowing None 5. I should have _____ it wouldn’t be easy. to know to be known known been known None Time's up Grammar Course Grammar Quizzes Other Quizzes