根据首字母补全单词
问题描述：
根据首字母补全单词
1>rls are (a ) of walking at night.
2>We should help (e ) other at school.
答
1) afraid
思路：be afraid of doing sth.害怕做某事
也有 be afraid to do sth.
2)each
思路：each other 互相