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regret doing与regret having done的区别
regret doing与regret having done没有区别。你的句子用not having accepted与 not accepting都可以。
回答于 2021-01-25 23:47
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It was Sunday morning
正：It was a Sunday morning.误：A Sunday morning,....正：on Sunday morning....正：On a Sunday morning...
回答于 2021-01-25 23:46
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what it was like back then是什么从句
1. what it was like back then是介词for的宾语。2. 所有介词后面接从句，都是宾语从句。3. get a feel for... 意思是“感受到……”“明白……”。4. back then 是习语，意思是“那时”“当时”。如：Things were different back then. 当时情况很不一样。
回答于 2021-01-24 22:24
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go for a row 和 go for rowing区别
两者意思一样。第二句的介词也可省略：Why not go (for) rowing?类似地：Why not go for a swim?= Why not go (for) swimming?
回答于 2021-01-24 22:17
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条件状语从句的省略
可以按你的分析去理解。但这仅限于口语用法。规范的用法应该是：If you come out there, you will be a dead man.Come out there, and you will be a dead man.
回答于 2021-01-24 22:16