Question

2.  一Could you tell me _________  for class this morning?

―I am 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

Answer 1

2.   D考查宾语从句的用法。宾语从句要用陈述语序， 排除A、C两项；由答语"我起床太晚，没能赶上早班车"可知，迟到是过去的事情，故用一般过去时。故选D。