问题
选择题
During the next ten years we both worked day and night to
_____ the money we had borrowed.
A．pay off
B．pay for
C．pay to
D．pay back
答案
答案：D
本题的含义是在接下来的十年，我们夜以继日的工作为了把我们所借的钱偿还掉，pay back表示偿还的意思，故本题选D。
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