注意：此页面搜索的是所有试题
题目内容
（兰州财经大学大学英语）
(2分)“You can’t have this football back ______ you promise not to kick it at my cat again.” the old man said firmly.
A. because
B. since
C. when
D. unless
A. because
B. since
C. when
D. unless
参考答案
