who is ________,Tom or Sandy?填什么?
问题描述:
who is ________,Tom or Sandy?填什么?
more careful 还是 carefuler
答
more careful
careful音标为:
/k'eərfʊl/
可见若为carefuler则有三个元音了(多了个"er" 嘛),而变比较级若加"er"在绝大多数是元音数小于等于二,故carefuler是不可取的