来自程芳真的问题
【英语单选thepilotwassotiredthathefortwelvehoursAhasfallenasleepBhasgonetobedChasbeenasleepDhasgonetosleep】
英语单选thepilotwassotiredthathefortwelvehours
AhasfallenasleepBhasgonetobedChasbeenasleepDhasgonetosleep

