[ Grammar ]
Select the sentence that correctly uses the present perfect tense with the time expression “since.”
A. We have lived here since three years.
B. I have known her since I was a child.
C. She has worked here since last summer.
D. They have gone home since an hour.

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A. could of
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A. famine
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a person in your family who was alive long ago, even before your grandparents
A. ancestor
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