题干
— Could you please tell me for the class this morning?
—I am so sorry, Mrs Lin. I got up so late that I couldn't catch the first bus.
A：why were you late
B：why you are late
C：why are you late
D：why you were late
答案(点此获取答案解析）
D
按下列角度旋转后，不能与其自身重合的是 ( )