I didn’t know whom the dictionary was borrowed from.
I didn’t know from whom the dictionary was borrowed.
举一反三
内容
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—Thank you all the same, Mr. Black, but I don’t eat sweets. —Oh, I am sorry. I ___________ (not know) that. A: doesn't know B: haven't know C: didn't know D: didn't known
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__________I didn’t know，and __________my brother had kept from me, was that our mother passed away when I was studying abroad.
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I was so ____________ that I didn’t know what to say.
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---Do you know Tim quarreled with his brother? ---I don't know,_______. A: no don't I care B: nor do I care C: I didn't care D: I didn't care either
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I didn't know where to send this _______ letter.