He always has a lot of _______ ideas in his mind , and sometimes we do not even know what he is thinding about.

With the help of the government , a large number of people ---_______ after the flood in 1991.

When making modern cameras , people began to_______ plastics for metal.

The _______ is nearly dead , so I can not start the car again.

This river is so big that it is impossible to build a _______under it without modern technology.

All the memories of his childhood had _______ from his mind by the time he was 65.

Although the trffic is not busy, he likes to drive at a_______ speed.

With the _______of Mary, all the girl students are eager to go to the party.

2010年10月1日，“嫦娥二号“卫星在西昌卫星发射中心发射升空并成功”奔月“，实现了我国()

理想作为一种精神现象，是人类社会实践的产物。理想源于现实，又超越现实，在现实中有多种类型。从层次上划分，理想有()