1.The pupils have not ( do) their homework yet.

done

1) i'm a happy owner of my own house.2)i built it myself.

3)my house is a very big mansion.

4)it's a modern house.

have survived  only  deservedly  earned  the nickname  of the  cyclist, but the  name  remains  unknown.the most important  road  race  is a  race  around france  for professionals  - "tour de france."  she first  held  in 1903, the total length  - 5000  km.  the terms of this  ultra long  race  changes every  year,  are subject to changeand stages.