选择用a 或按 来填空 this is ( )good book

问题描述:

选择用a 或按 来填空 this is ( )good book
it is ( )eraser
( )red book is good
( )"a"is in the word"name"
i have( )map
把下列单词组成句子
an is this orange
this english whatis in
please it spell

选择用a 或按 来填空 this is ( a)good bookit is ( an)eraser( the)red book is good( an)"a"is in the word"name"i have(a )map把下列单词组成句子this is an orangewhat is this in English?spell it,please....