1.Every citizen must observe the traffic rules consciously / of his own free will.
2.The young man's sense of humor left a deep impression on the interviewers.
3.Although all kinds of information are available online, it is no easy job to tell which is true.
4.A good sleep helps you relieve physical and mental stress while insufficient sleep may lead to various diseases.
5.Considering the high housing prices in the central city area, many people are choosing to live in suburb areas, so the subway becomes their most convenient and economical commuting way /way of getting to work.