50. The grandson makes a lot of noise as (   ) .

• A、he never cares whether the neighbors might want to live in peace and quiet

• B、 the walls of the building are thin

• C、he likes to listen to his radio early in the morning

• D、friends come to visit him

48. Bill's family got angry with their neighbor because (   ) . 

• A、the old lady died

• B、a young man moved in

• C、the grandson made a lot of noise

• D、the young man could not live alone

52 (   ).