For  _______information about present national boundaries, we’d better refer to an up-to-date map.

Two-thirds of the land ________ covered with green grass and the rest _______ covered with pine trees.

The kid, rather than his parents, __________said to have had an accident while travelling. 

I feel it is Jack as well as his wife that _______ for their son’s bad performance at school.

The police　　 a prisoner.