----Why didn’t you see me wave to you then?----Oh If so. I must say sorry. I think I in t

问题补充：

----Why didn’t you see me wave to you then?

----Oh, If so. I must say sorry. I think I in the other direction.

A. looked

B. was looking

C. have looked

D. am looking

答案：

A. looked

(答案→)B. was looking

C. have looked

D. am looking

解析：考查代词时态。句意：你为什么没和我们招手呢？对不起，那时我一定是正在朝另一个方向看呢。根据句意强调刚才的某一时刻，应该用过去进行时，所以B正确。