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(   ) 5. The Yellow River is       longest river inChina.

A. two    B. second

C. the two    D. the second

5. Confucius' wise       ( say ) are remembered by people all over the world.

2. They found out the right direction       ________________ (在GPS的幫助下）.

1.他詳細地介紹了他的發明過程。

 He               his invention process   

1. 國旗是我們國家的象征。

Our national flag is __________  _______      our nation.

3 .Kids often think they themselves are heroes while playing war games.(改為同義句）

Kids often              heroes while playing war games.

3. We can see the sun rise      the east   every morning.

1. The policeman advised him __________ (take ) a bus to get there.