聽第二篇短文，回答第16-20小題．
16．What was Hepburn before she became an actress？
A．She was a singer．
B．She was a dancer．
C．She was a model．
17．How long did Hepburn's successful career last？
A．For 14 years．
B．For 40 years．
C．For 44 years．
18．Why did the French writer choose Hepburn to play Gigi？
A．Because Hepburn's beauty and charm caught her attention．
B．Because she had watched Hepburn's films before．
C．Because she wanted to find a Hollywood actress to play this role．
19．How many Oscar nominations did Hepburn have during her lifetime？
A．Four．
B．Five．
C．Six．
20．In which film did Hepburn make her final appearance？
A．Roman Holiday．
B．Always．
C．Gigi．