By the time Mr.Jackson arrived in Shanghai,he___many famous cities in Europe.选has visited 还是had visited?

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By the time Mr.Jackson arrived in Shanghai,he___many famous cities in Europe.选has visited 还是had visited?
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By the time Mr.Jackson arrived in Shanghai,he___many famous cities in Europe.选has visited 还是had visited?
By the time Mr.Jackson arrived in Shanghai,he___many famous cities in Europe.
选has visited 还是had visited?

By the time Mr.Jackson arrived in Shanghai,he___many famous cities in Europe.选has visited 还是had visited?
用had visited,填过去完成时.
根据句意,杰克逊先生到达上海已经发生在过去（因为用的arrived一般过去时）,但在那时,他已经去过欧洲的很多城市了,这发生在过去的过去,所以要再往前推一个时间点,用过去完成时.

had visited,因为发生在过去时之前，arrived

你好:由by the time可知，应是had visited

had visited

had visited
在到达上海之前，Jackson已经去过很多欧洲有名的城市了。
by the time：在....之前已经....（看到by the time，一般主句用过去完成时）
在者，我觉得前面已经是arrived了，那后面肯定不可能跟现在时有关系了，是发生在去上海之前。

By the time we got there,Mr White （）（get）everything ready 动词填空 Mr.Jackson is quite satisfied with the job now for which he is paid______.A.by the time B.by times C.by the hour D.by hours by the time ,by then By the time by the time By the time Mr.Jackson arrived in Shanghai,he___many famous cities in Europe.选has visited 还是had visited? the photos were___(take) by Mr.smith 用by the time造句! by the time怎么造句? by the time +现在式造句 by the time 的用法 by the time 等于什么? by the time to 谢 by the time什么意思 in time ,on time ,by the time 的区别, The time has been confirmed by Mr.Wang.我想表达的意思是这个时间已经被王先生确认了.英文这样写对吗? the time,show by the day as the time goes（went) by,with the time going byas the time goes by,with the time going by,as the time went by,用于什么时态?