Some people contend that ... has proved to bring many advantages (disadvantages)

　　有些人认为________有很多有利之处(不利之处)。

　　Those who argue for ... say that ...economic development of the cities.

　　觉得_____的人认为，______ 城市的经济发展。

　　Some people advocate that ....

　　有些人在坚持认为_________。

　　They hold that ... 他们认为_________。

　　People, who advocate that ..., have their sound reasons (grounds)

　　坚持认为______的人也有其说法(依据)。

　　Those who have already benefited from practicing it sing high praise of it.

　　那些从中受益的人对此大家褒奖。

　　Those who strongly approve of ... have cogent reasons for it.

　　强烈认同_______的人有很多原因。

　　Many people would claim that...

　　有人会认为___________。

　　Just as the saying goes: "so many people, so many minds". It is quite understandable that views on this issue vary from person to person.

　　俗话说，""。不同的人对此有不同的看法是可以理解的。

　　To this issue, different people come up with various attitudes.

　　对于这个问题，不同的人持不同的观点。

　　There is a good side and a bad side to everything, it goes without saying that...

　　万事万物都有其两面性，所以，勿庸置疑，____________。

　　When it comes to ..., most people believe that ..., but other people regard ...as ....

　　提到_________问题，很多人认为_________，不过，一些人则认为______是____.

　　When faced with...., quite a few people claim that ...., but other people think as...

　　提到_________问题，仅少数人认为________，但另一些人则认为_________。