Children like houses ________ are painted in different colours．

1. A.
   which
2. B.
   they
3. C.
   those
4. D.
   what

 Children like houses______ are printed in different colors.

A .which       B .who      C .those       D. what

Children like houses _________ are painted in different colors．

1. A.
   where
2. B.
   which
3. C.
   who
4. D.
   when