问题
选择题
After many years of hard work,Mary and her husband had at last paid ________all the money they had borrowed.
A．for
B．out
C．in
D．off
答案
D
pay off偿清；偿还；pay for 为……付款。
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After many years of hard work,Mary and her husband had at last paid ________all the money they had borrowed.
A．for
B．out
C．in
D．off
D
pay off偿清；偿还；pay for 为……付款。