We are always told that only through hard work       our goals in our study.

A．we will achieve

B．we have achieved

C．have we achieved

D．will we achieve

( )应当重点安排好城乡结合部土地利用，合理划定城镇建设用地范围。

A．乡镇级规划

B．县级规划

C．地级规划

D．省级规划