问题描述：
since引导时间状语从句
since引导的从句怎么用
这句话有错吗?
since 21 century ago,the computer is wide use for personal daily life.
怎么改
since引导的从句怎么用
这句话有错吗?
since 21 century ago,the computer is wide use for personal daily life.
怎么改
问题解答：
我来补答展开全文阅读