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题目内容
（甘肃开放大学 英语阅读1）
We have the pleasure _______ you a quotation on “Butterfly” Brand Sewing Machine.
A.
in sending
B.
of sending
C.
having sent
D.
being sent
A.
in sending
B.
of sending
C.
having sent
D.
being sent
参考答案
