By the time you have finished this book ,you_____cold.
问题描述：
By the time you have finished this book ,you_____cold.
A gets B has got C will get
为什么不用B
you have finished this book 不是表示现在吗
为什么By now ,we have
your meal 打漏了
答
By 接时间点, 表示“截止到某个时间为止” 常用完成时态 you have finished this book 是现在完成时态,它表示其动作或状态从过去的某个时间开始,一直持续到某...By the time +完成时 后接的都是将来时吗不是啊！要看你用的是什么句子！例如：By the end of last year , this factory had produced more than two million cars . 截止到去年年末，这家工厂已经生产了2oo万两汽车！ 这里表示的是过去完成的动作，主句是过去完成时！