[ Nouns as Adjectives ]
Our _________ birthdays are the same day.
A. mothers
B. mother’s
C. mothers’
D. moth’ers

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Grammar › ViewTheir wings act as flippers in the chilly water.
A. compound sentence
B. not a compound sentence
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You haven’t paid the rent yet. _____________, you owe me money.
A. So
B. In addition