题干
— She didn't finish my homework _____ my father came back.
— So you went to bed too late.
A：until
B：when
C：while
D：since
答案(点此获取答案解析）
A
— She didn't finish my homework _____ my father came back.
— So you went to bed too late.
A：until
B：when
C：while
D：since
