问题
选择题
We all feel puzzled why the students _____ the same mistakes repeatedly in exams.
A．were making
B．have been making
C．had made
D．will be making
答案
答案：B
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We all feel puzzled why the students _____ the same mistakes repeatedly in exams.
A．were making
B．have been making
C．had made
D．will be making
答案：B