1 答案是A
made convenient public transportation
== made(谓语) public transportation （宾语）convenient （宾语补足语）
2 make it (形式宾语) convenient for people to take public transportation（从for开始,真正宾语）
3 make it (形式宾语) convenient that people take public transportation more easily (从that开始,真正宾语)��� ������ô����֪��ʲôʱ��Ҫ����ʽ�����أ����в���ʽ��Ӿ�������ʱ好的谢谢