We choose this hotel because the price for a night here is down to $20, half of 出卷网

We choose this hotel because the price for a night here is down to $20, half of _______ it used to charge.

A．that	B．which
C．what	D．how

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