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Itbe+时间段＋before...Itbe+时间点＋when...Ithasbeen+时间段＋since...Itbe+时间段＋before...Itbe+时间点＋when...Ithasbeen+时间段＋since...分别是什么意思及它们的用法?Itisthreetimesyearssinceth
题目详情
It be +时间段＋before...It be+ 时间点 ＋when...It has been +时间段 ＋since...
It be +时间段＋before...It be+ 时间点 ＋when...It has been +时间段 ＋since...分别是什么意思及它们的用法?
It is three times years since they got married.与It is three times years since they be married在意思上有什么区别?It was three years before he came back form abord.It won't be long before we meet again.
It be +时间段＋before...It be+ 时间点 ＋when...It has been +时间段 ＋since...分别是什么意思及它们的用法?
It is three times years since they got married.与It is three times years since they be married在意思上有什么区别?It was three years before he came back form abord.It won't be long before we meet again.
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答案和解析
1.It be +时间段＋before...过了多长时间才.：It was two days before he knew.过了两天他才知道.It was three years before he came back from abroad.过了三年他才从国外回来.2.It be+ 时间点 ＋when...当.时候,时...
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