问题描述:
that 和 it 作代词时的区别
比如 life in the twenty -first century is much easies than _used to be .应填that还是it?请说明理由!
比如 life in the twenty -first century is much easies than _used to be .应填that还是it?请说明理由!
问题解答:
我来补答展开全文阅读