1.Every coin has two sides，and... 2.Opinions are divided on the question. 3.On the whole，there are two different opinions on the question. 4.Different people have different opinions/hold different views. 5....percent of the people are against the idea that... They believe/think/consider/insist that... 6.Some are in favor of...They believe...Others，however，think... 7.On the contrary/At the same time，others hold a different opinion. 8.In my opinion/As far as I’m concerned，I think/believe/consider/prefer...，because...

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