Apples are usually sold by ______weight, and eggs are sometimes sold by ______ dozen.
A.the; the | B.不填; a | C.不填; the | D.the; a |
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Apples are usually sold by ______weight, and eggs are sometimes sold by ______ dozen.
A.the; the | B.不填; a | C.不填; the | D.the; a |