Sir, you are not allowed to enter the building without our manager’s .
A. permission
B. attention
C. application
D. protection
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(答案→)A. permission
B. attention
C. application
D. protection
解析:句意:先生,没有经理的允许你不能进入房间。四个选项的意思分别是:A. permission允许,B. attention注意,C. application应用,申请,D. protection保护,根据句意选A。