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Answers
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Many people that run, either to have a hobby or to stay fit, is unaware that exercising in urban areas during peak traffic hours is unhealthy as doing so increases the intake of harmful gases.
A. is unaware that exercising in urban areas during peak traffic hours is unhealthy as doing so
B. are unaware that exercising in urban areas during peak traffic hours is unhealthy as it
C. are unaware that exercising in urban areas during peak traffic hours is unhealthy because it
D. are unaware that exercising in urban areas during peak traffic hours is unhealthy and it
E. are unaware that exercising in urban areas during peak traffic hours is unhealthy as doing so
A. is unaware that exercising in urban areas during peak traffic hours is unhealthy as doing so
B. are unaware that exercising in urban areas during peak traffic hours is unhealthy as it
C. are unaware that exercising in urban areas during peak traffic hours is unhealthy because it
D. are unaware that exercising in urban areas during peak traffic hours is unhealthy and it
E. are unaware that exercising in urban areas during peak traffic hours is unhealthy as doing so












