十八大报告指出，要鼓励有条件的地方在现代化建设中继续（），为全国改革发展作出更大贡献。

A.走在前列

B.改革开放

C.走在前面

D.创新发展

For many cities in the world, there is no room to spread out further, ______ New York is an example.

A．for which

B．in which

C．of which

D．from which