23. With the economic situation worsening , shopkeepers have to sell their goods a big discount to attract customers.
A. day by day; with
B. day after day; at
C. day by day; at
D. day after day; in
网友回答
A. day by day; with
B. day after day; at
(答案→)C. day by day; at
D. day after day; in
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