根据句意及首字母填入一个恰当的词

题目

根据句意及首字母填入一个恰当的词
he is a b______and she is a girl
is this your d____?i want to look up(查找）a word in it.
my baseball is in the l_______and found case
you can put the pen in the pencil c ______.
he has a s______of keys from his father
h_____do you spell'pen'?
只输入答案就行了

答案

boy
dictionary
不知
case
不知
how