He didn't go home _______ he finished his homework. [ ]
A. when
B. if
C. until
D. that
答案:C
下列词语中没有别字的一项是(3分)
A.文采滞留红装素裹心无旁鹜
B.陨落萧索黎明百姓恪尽职守
C.既然嘻闹重蹈覆辙无与伦比
D.汲取矫情恃才放旷味同嚼蜡
车队向灾区运送救援物资,去时每小时行65千米,8.4小时到达目的地.返回时,如果每小时行70千米,多长时间能返回出发地点?