By the time he was 14,he was able to play the guitar.By the time不是加过去完成时吗?这句话怎么回事?难道是主句强调动作时才用过去完成,这里是状态就用一般过去就行了?麻烦讲清楚谢谢最好有例子

By the time that we got there,he was out. 题目是这样的：by the time he was ten ,he ( ) very well . by the time he took a shower,the telephone was r-----------. 填词完成句子,Lord Kelvin was a genius.By the time he was ten years old,he had c______ univercity. lack had taught himself physics by the time he was ten years old what had Annie done by the time he was ten翻译 since/by/before the time he was worked as a translator.具体说下其他两个。 he was affected by the flashbacks from his previous time period翻译 By the time he was sixty,he _for the company forthirty years.为什么答案是will have worked By the time he was 10,he ____(make) a living by selling newspapers.By the time he was 10,he ____(already make) a living by selling newspapers.答案是was already making可by不都是用完成时的吗?应该是过去完成时才对啊?By the time by the time与by的区别by the time he was ten 与 by he was ten有什么区别如果在单选题中呢，选什么 By the time he was dead ,he hadn't finished his work?这句话有没有问题? 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 Because he didn't finish the work on time and was fired by the company ,he was very ( )about it.A upset B worryied C anxious D nervous Because he did not finish the work on time and was fired by the company,he was very___about it .A.upset B.worried C.anxious D.nervious 英语翻译the boy often makes her( ),but this time he was made( )by her 1 cry ,to cry 2,cry cry make to do sth by the time 空格 he was ten years old ,he had begun to make a living by selling newspapers.空格那个地方为什么不能填when 英语翻译By the time he told me that he loved me and that I was the most exciting girl he'd ever known