the earth is not flat,which had puzzled many people in the old days.
is this sentence wrong because the thing which is reffering to is not clear??????????
plz explain in detail.
Yeah, from what I have learn, the sentence should be:the earth, which had puzzled many people in the old days, is not flat.
By the way you have constructed the sentence it means that people were amazed about earth and is not flat is just an addition but people were amazed about the fact that earth is not flat not about earth
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