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The school rules state thatno child shall be allowed out of the school during th

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The school rules state thatno child shall be allowed out of the school during th

The school rules state thatno child shall be allowed out of the school during the day,    
_____accompanied by an adult.    [     ]A. once    
B.when    
C.if    
D.unless

试题答案

D

标签：beshallallowedofout

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