16．
| sad | back | holiday | up | sitting | crowded |
| who | tired | allowed | in | lost | anywhere |
In 1955 in Montgomery，Alabama，only white people were （31）allowed to sit in the first four rows of public buses．African-American people had to use the seats towards the （32）back of the bus．
If someone （33）who was African-American sat in the white part，he or she would be asked to move．
One day，an African-American named Rosa Parks was （34）sitting in a"whites only"part of the bus．
The bus was （35）crowded and some white people needed a seat，so the driver asked Rosa Parks to give （36）up her seat．
But she refused．She was （37）tired after a long day working in a store and she felt she should have the right to sit （38）anywhere she wanted，so she told the driver"no"．
For that，she was arrested （逮捕）．She was tried for just 30minutes and fined （罚款）﹩10-a lot of money in those days．
She also （39）lost her job because of that．
Today，in the United States．December 1is a （40）holiday called Rosa Parks Day．Rosa Parks is celebrated for her action and bravery．
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