1.  Karl Marx wrote articles about housing problems of the poor people and the hard life of the peasants.

2.  He wrote articles about housing problems of poor people and so on.

3.  He wrote articles about housing problem of the poor people and the hard life of the peasants.

4.  Marx wrote articals about housing problems of the poor people and the hard life of the peasants.

5.  He wornte articles about housing problems of the poor people and the hard life of the peasant and so on.

6.  He wrote articles about housing proplems of the poor people and the hard life of the peasants.

7.  He wrote articles about housing problems to the poor people and the hard life of the peasants.

8.  He ever rote articles about housing problems of the poor people and the hard life of the peasants.

9.  He wrote articles about housing problems of he poor people and the hard life of the peasants.

10.  And I will join into the "warm touch" in my college, it was to help some poor people in the countryside and help the children to go to school .