问题
选择题
72. We couldn’t read the notice on the board because several people were standing _______ it.
A．in front of
B．in the front of
C．at the back of
D．in back of
答案
答案：A
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72. We couldn’t read the notice on the board because several people were standing _______ it.
A．in front of
B．in the front of
C．at the back of
D．in back of
答案：A