连词成句1.countries,one,of,the,China,is,in,the,oldest,world

问题描述:

连词成句1.countries,one,of,the,China,is,in,the,oldest,world
2.never,of,heard,we,this,have,space,museum

1 China is one of the oldest countries in the world.
2 We have never heard f this space museum.