问题
选择题
11. It is natural that____student doesn't know some answers to____questions raised by their teachers.
A．a;a
B．a;the
C．the;a
D．the; the
答案
答案：B
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11. It is natural that____student doesn't know some answers to____questions raised by their teachers.
A．a;a
B．a;the
C．the;a
D．the; the
答案：B