第1个回答 2012-04-06
Although building subway requires a large sum of manual work, materials and fund, people will get benefits of its convenient. so i advocate to build subway
第2个回答 2012-04-06
It will take many manual power, material resources and financial resources to build a metro but it will do great convenience to our life thus I insist on the construction of the metro.本回答被提问者采纳
第3个回答 2012-04-06
Though building subways costs a lot labour power，material resource and financial recourse，after finishing the task will be much more convenient for people's living. Therefore, I support building subways.