by the age of 30 后面用过去完成时还是现在完成时,还是别的时态?
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bytheageof30后面用过去完成时还是现在完成时,还是别的时态?bytheageof30后面用过去完成时还是现在完成时,还是别的时态?bytheageof30后面用过去完成时还是现在完成时,还是
by the age of 30 后面用过去完成时还是现在完成时,还是别的时态?
by the age of 30 后面用过去完成时还是现在完成时,还是别的时态?
by the age of 30 后面用过去完成时还是现在完成时,还是别的时态?
by引导的时间状语只用在两个时态中：
一般将来时,例：I will get married by the age of 30.
过去完成时,例：He had had 3 kids by the age of 30.他到他30岁的时候已经有了3个孩子.言外之意是他现在已经不止30岁了.
一般将来时 应该用到了介词 by 意为 在什么什么之前.
原句理解为 在30岁之前
过完 过去进行 过去时
by the age of 30 后面用过去完成时还是现在完成时,还是别的时态?
by the age of,at the age of的区别?
in the age of by the age of at the age of的区别in the age ofby the age ofat the age of的区别
at the age of 与by the time of 与at that time后面分别加什么时态?
by the age of by the age of 意思,最好有例句!
一些关于介词的用法at the age of by the age of有什么区别
by the age of 和at the age of的区别
at the age of three 和 by the age of three有什么区别
by/at the age of分别使用什么时态
英语翻译in two short years by the age of 23
请问一下at the age of 与 by the age of 的区别.还有最好给一下例句.__the age of twenty,he had written two books.
at the age of怎么用?
at the age of
at the age of
at the age of
from the age of ..
by the end of后面能加现完吗?
By the time he was 30,he was generally regarded as (one of the outstanding sculptors)of the age.括号内的词的用法分析