It ........ until the Fourt Dynesty that the most famous pyramids were built.
The answer is '' wasn't ''. But I thought why it is incorrect if use '' hadn't been'' . Can u explain please?
dovent The answer is '' wasn't ''. Correct. (Don't you have the symbol " on your keyboard?
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doventThe answer is '' wasn't ''.
Correct. (Don't you have the symbol " on your keyboard?
)