出卷网(Chujuan.Net)为中小学教师出题组卷参考：月考试卷、模拟试卷、期中期末试卷

In the United States and some other countries, it is the driver’s responsibility to make sure that children under fourteen do not ride in the front seat        they are wearing a seat belt of some kind.

A．while	B．even
C．until	D．unless