please help me correct them 1. He forgot to fit the handle to that mop , so it cannot be use now. 2. To chop down a tree is a very difficult thing for these children. 3. The bear was groarning and crashing to the ground. 4. She was crying mournfully. 5. My mother always displaces her key. 6. This patient often suffers hard pain. 7. Don't tell anyone that he or she is a foolishness person .