—Excuse me, sir. Please don’t take photos in the museum. Look at the sign
_______
—I’m sorry. I didn’t notice it just now.
A B C
答案
B
—Excuse me, sir. Please don’t take photos in the museum. Look at the sign
_______
—I’m sorry. I didn’t notice it just now.
A B C
B
B
C
D
means______. 
B
C
D
