问题
选择题
The school rule states that no child shall be, unless by an adult, allowed out of the school during the day.
A．was accompanied
B．accompanying
C．accompanied
D．being accompanied
答案
答案：C
考查从句的省略式：unless accompanied="unless" the child is accompanied by an adult，句意是：学校规定说，没有孩子在没有成人的陪伴下可以在白天出学校。选C。
