—Did any signs come up before the earthquake?

—Yes. Unusual things             all those days. For example, a number of animals got out their homes.

A．happening

B．were happening

C．has happened

D．had happened

在一个项目的施工准备阶段，应切实做好的准备工作包括( )。

A．征地、拆迁、平整场地、通水、通电、通路

B．组织设备、材料订货

C．组织施工招标，选择施工单位

D．制定工程建设的方案

E．办理施工许可证