(5/7).when b.until c.after d.since 6."Yon can't have this ball back ___ you promise not to...
问题描述：
(5/7).when b.until c.after d.since 6."Yon can't have this ball back ___ you promise not to...
(5/7).when b.until c.after d.since
6."Yon can't have this ball back ___ you promise not to kick it at my cat again," the old man said firmly.
a.because
答
b.until
not ……until 直到……才……,除非……
老人坚定的说：“你发誓不再踢我的猫,我才会把球还给你”