I promised my boss that I would finish the work by the end of that month.后面有by the end结构前面不是应该用完成时吗?

题目

I promised my boss that I would finish the work by the end of that month.后面有by the end结构前面不是应该用完成时吗?为什么不用would have finished

答案

by the end of 只是常和完成时态连用 不是 一定要和完成时态连用这是叙述过去的事情 如果改为现在时态应是 I promise that I will finish the work by the end of the month.改为过去时态 前后时态一致 所以是如例句...