问题
选择题
. Barry hid himself behind the door, from __________ he could hear the steps of his father clearly.
A．which
B．that
C．when
D．where
答案
答案：D
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. Barry hid himself behind the door, from __________ he could hear the steps of his father clearly.
A．which
B．that
C．when
D．where
答案：D
