问题
选择题
—_________ did you leave the classroom?
—___________ I saw my daughter sit down and read her book.
A．How long; After
B．When; Until
C．How long; Until
D．When; After
答案
答案：D
根据题干可知，第一句询问“你什么时候离开的教室？”答语是“我看到我女儿坐下读书后”，故选D.