xiaohua's father bought her the（改为a） new bike the day before yesterday,which it（it删去） made her very excited . so she rode it fast on the road . seeing a man get（改为getting） close to her .xiaohua couldn't stop it and as a result ,she knocked onto（改为into） the man. being very kind ,the man didn't scold her at all .instead,he told her how dangerously（改为dangerous） it was to ride a bike so fast . he asked her keep（keep前面加一个to） the lesson in mind . xiaohua felt regretful but（but改为and） ashamed . shepromised to keep the lesson in mind for ever ,

已帮你修正好,望满意采纳,goodnight!begin改为began最后一行的how改为what其余应该没问题了