___you read this,thousands of pictrues will have been sent to us.1 before 2 when选择哪一个,及分别说出为什么对与错

分类: 作业答案 • 2021-12-19 16:21:23

问题描述：

___you read this,thousands of pictrues will have been sent to us.1 before 2 when
选择哪一个,及分别说出为什么对与错

答

这两个都是正确的选项.它们都有by the time +句子的含义.
by the time+句子（一般现在时）,将来完成时
（从句）（主句）