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