我在楼上同学的基础上补充一点点东西。1.at the end of意为“在……结束时、在……的尽头”,是一个介词短语,既然是介词短语,那么它就可以放在BE动词后面,然后它可以作状语,放在句子的前面或者后面,当然前提是of后面要加东西的,比如说:The school is at the end of the street.He is waiting for you at the end of the street.2.by the end of意为“到……末为止”,一般与将来完成时连用,但是也可以和过去完成时以及现在完成时连用,当然一般考的是将来完成时,特殊情况除外。by the end of后面接时间点,现在和过去的都可以。比如说:By the end of this year,they will have finished work on the new stadiumBy the end of last year,I would have learned 2000 English words.3.In the end意为“最终、最后”与at last 或者finally同义,相当于一个副词,比如说:I found him in the bus in the end.In the end,I told her the truth.
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