For years historians claimed that pasta was introduced to Europe around 1295; however, archaeologists have uncovered what appears to be pasta-making devices that date back even earlier.
In the above quoted sentence, the issue is about "what appears to be " or what appear to be" Which one is correct ? Alternatively, other issues may be present which I do not know.
Top answer
what appear to be is correct.
— Mister Micawber
what appear to be is correct.
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