sashiim20 wrote:
Scientists and archaeologists remain puzzled to this day about how the pyramids were by the ancient Egyptians built.
a) about how the pyramids were by the ancient Egyptians built
b) because of the pyramid structures who the ancient Egyptians had built
c) about the ancient Egyptians building for the pyramids
d) by the inspiring pyramid structures built by the Egyptians ancient
e) by how the pyramids were built by the ancient Egyptians
Source: GMAT Club Grammar Book.
Error Analysis:
Option A: incorrect
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