by the end of 到...结束的时候。 he has finished the homework by the end of this week. 用到句中，要用完成时态...！！！1
用by the end of 造句
可用将来完成时
I will have learnt five hundred words by the end of this month.
可用过去完成时
I had learnt five hundred words by the end of last term.
希望对你有帮助，满意请采纳2013-03-27
by the end of 到.....结束的时候。 he has finished the homework by the end of this week. 用到句中，要用完成时态.....！！！12013-03-28
很高兴为你解答！
次短语可用于各种完成时态。举例如下：
We have learned 4000 English words by the end of this week。
They had finished their work by the end of last year。
We will have finished the building by the end of next month。
宝贝，希望对你有所帮助。祝你学习进步、快乐！
2013-03-27
