marix998 I thought BY was used with the past perfect It can be used with the past perfect, but it can also be used with other tenses. The initial phrase does not need to be changed to " At the end". CJ
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marix998I thought BY was used with the past perfectIt can be used with the past perfect, but it can also be used with other tenses. The initial phrase does not need to be changed to "At the end".
marix998any difference in meaning of the sentence between the past simple and the past perfectBy the end of the nineteenth century, the Chinese world order was totally out of joint. (Correct)