This is an useful book .You must read it carefully .哪里错了?
问题描述:
This is an useful book .You must read it carefully .哪里错了?
答
an 改为 a .因为useful是辅音开头的单词.
This is an useful book .You must read it carefully .哪里错了?
an 改为 a .因为useful是辅音开头的单词.