问题
选择题
I spent five yuan on this pen. =" I" spent five yuan buying this pen.
A．by
B．in
C．for
D．on
答案
答案：D
题目分析：句意：我花了5元钱买了这支钢笔。根据短语spend some time on sth.="spend" some time doing sth.某物/做某事花了多长时间。故选D。
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