Theschoolrulesstatethatnochildshallbeallowedoutofschho...
来源:语文精选馆 1.71W
问题详情:
The school rules state that no child shall be allowed out of schhool during the day, ______ accompanied by an adult.
A. once B. unless C. when D if
【回答】
B
知识点:连词
题型:选择题