Eliza Doolittle，a poor flower girl who was ambitious to improve herself，came from the west end of London．She made a living by （61）___（sell）flowers in the streets．One day，she met with Professor Higgins who was （62）___ expert in phonetics，convinced that the quality of a person's English depended on his or her position in society．Professor laughed at Eliza's terrible English and promised（63）___ （proud） that once taught to speak properly，the girl could pass（64）___ off in three months as a duchess at an ambassador's garden party．Eliza thought that it was a chance for her （65）___（change）her life．So she went to Higgin's house and asked him to teach her but （66）___ （refuse）．At that time，professor's friend Colonel Pickering，an officer in the army，was interested in the girl's （67）___ （educate）．He bet with the professor that he might not teach Eliza successfully，（68）___ made the proud professor accept Eliza （69）___ a student and decided to teach her not only pronunciation （70）___ also grammar．