英语语法 till then 与 by then.有什么区别.另有一题目请分析Please return( )two hours.I'll be ready( )then.A.in till B.after till C.in by D.after by

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英语语法 till then 与 by then.有什么区别.另有一题目请分析Please return( )two hours.I'll be ready( )then.A.in till B.after till C.in by D.after by
英语语法 till then 与 by then.有什么区别.另有一题目请分析
Please return( )two hours.I'll be ready( )then.
A.in till B.after till C.in by D.after by

英语语法 till then 与 by then.有什么区别.另有一题目请分析Please return( )two hours.I'll be ready( )then.A.in till B.after till C.in by D.after by
答案C.
表将来时用in,in two hours意为“在两小时内”,有时可译为“两小时后”.
by then:“到那时为止”,常用于将来时或完成时,表示到了某个时候的状态.
例如：
I'll be at home by six o'clock.我会在6点到家.
The task has to be finished by the end of the day.任务必须在当天结束前完成.
till then:“直到那时候”,表示动作的持续进行到某个时刻.
例如：
I can wait till then.我可以等到那个时候.
till then 通常和not搭配,即not...till then,表“直到那时才.”
如：
She will not start till then.她要到那时才开始.

英语语法 till then 与 by then.有什么区别.另有一题目请分析Please return( )two hours.I'll be ready( )then.A.in till B.after till C.in by D.after by up till that time和by then的区别? from then till by与till后面可以跟时间段吗? He went home ____10:00.But he didn't go to bed____11：00.A.by;by B.till;till C.by;till 为啥要填C?理由!说明by 与till,和until得区别！ by then与since then的用法区别? by 、untill、 till、 to 区别 up till then这个词怎么解释? Save your money till then怎么翻译 by the time ,by then till·until和by的区别 by 与till用法区别（高手进）详解,在选项中同时出现如何区别?不需瞎答! till then和till that time 的区别（回答得好加分） Did i know till then what love i bore to 英语翻译原文：Up and till then ,she had worked in Tianjin for nearly 10 years.Up and till then till till He went home ____10:00.But he didn't go to bed____11：00.A.by;by B.till;till C.by;till