问题
单项选择题
We have received your letter of 23 November ______ reply to ours of 12 November.
A．to
B．in
C．for
D．on
答案
参考答案：B
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We have received your letter of 23 November ______ reply to ours of 12 November.
A．to
B．in
C．for
D．on
参考答案：B