55 (   )

42. At last Jim's mother (   ).

• A、gave her son some good food

• B、knew her son had told a lie

• C、 bought some medicine for her son

• D、 bought some cakes for her son

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