the teacher showed the student a word ()"a"'A begins with B beginning withC began withD began at

问题描述:

the teacher showed the student a word ()"a"'
A begins with
B beginning with
C began with
D began at

选B
begin with 以……开始
这里是动词的 ing 形式作 word 的定语
a word beginning with "a" 一个以"a"开头的单词