what?says dick's ,mother

what?says dick's ,mother
第四节：任务型阅读。根据短文内容，完成下列任务。
dick is seven years old.he begins to go to school this term.he works very hard and listens to the teacher carefully.he is polite.(1)he has lots of friends.so they all like him very much.
it's saturday today.dick,his sister and his mother stay at home.his mother is doing the housework and he is watching tv and the girl is doing her homework.at ten his father comes back from the farm with a bog of apples.(2)__________His mother gives him four apples and says,"Go to wash them in the kitchen"
dick washes the apples and then gives them back to his mother.the mother says,(3)_____________________.
"the big one,mummy.
65题到底填什么啊？而且（4）个空是什么
what?says dick's mother,"________________"
should i tell a lie just to be polite ,Mummy?
65、what's the meaning of "just to be polite"in chinese?