问题
选择题
--What does the sign over there say?
--No person ______ enter the area without official permission.[ ]
A. will
B. shall
C. must
D. may
答案
答案：B
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--What does the sign over there say?
--No person ______ enter the area without official permission.[ ]
A. will
B. shall
C. must
D. may
答案：B