问题描述：
In the 1980s,most people went to work by bike(改为同义句）
1.In the 1980s,most people _____ _______ ________ to work
2.In the 1980s,most people went to work _____ _______ ________
1.In the 1980s,most people _____ _______ ________ to work
2.In the 1980s,most people went to work _____ _______ ________
问题解答：
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