He was sleeping___she was reading a magazine. A.
问题描述:
He was sleeping___she was reading a magazine. A.
Hewas sleeping___she was reading a magazine. A.until B.before C.after D.while
答
D while 表示对比,当一人在.时,另一人在.,a 为知道,B是之前,C是之后,D是当.时