问题
选择题
Mary is proud a record by running two laps this year.
A．to break
B．to have broken
C．breaking
D．having broken
答案
答案：B
题目分析：考查动词不定式的完成式
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Mary is proud a record by running two laps this year.
A．to break
B．to have broken
C．breaking
D．having broken
答案：B
题目分析：考查动词不定式的完成式