Question

3. It is said that in the old days dogs for hunting in some areas.

   A. are used   B. used

   C. were used   D. have been used 

Answer 1

3.C  由时间状语intheolddays知that从句的谓语动词用一般 过去时，又由句意知主语dogs是谓语动作“使用”的承受者， 用被动语态。