Nowadays many people prefer A because it has a significant role in our daily life. Generally, its advantages can be seen as follows. First ---(A的优点之一). Besides ---(A的优点之二).
But every coin has two sides. The negative aspects are also apparent. One of the important disadvantages is that ---(A的第一个缺点).To make matters worse,---(A的第二个缺点).
Through the above analysis, I believe that the positive aspects overweigh the negative ones. Therefore, I would like to ---(我的看法).
(From the comparison between these positive and negative effects of A, we should take it reasonably and do it according to the circumstances we are in. Only by this way, ---(对前景的预测).