The sign _____ “In case of _______ fire, break the glass and press _______ red button.” 
#64402
A
reads,不填;the
B
writes,不填;the
C
reads, the; the
D
writes, a; a
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About four meters long, the room         a small reception hall.
#71155
A
served for
B
was served for
C
served as
D
was served as
We are more_____ how he won the Oscar award for the best director.  
#75707
A
concerned about  
B
engaged to  
C
related to     
D
worried about