Vitamin D helps our bodies make a special chemical, and this special chemical, ________, affects our brains, making us feel happy.
A.in turn | B.in particular | C.in advance | D.in short |
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Vitamin D helps our bodies make a special chemical, and this special chemical, ________, affects our brains, making us feel happy.
A.in turn | B.in particular | C.in advance | D.in short |