Question

---What did the policeman say to you just now?
--- He asked _______ when the accident happened.

A．what I was doing

B．what was I doing

C．what I am doing

D．what am I doing

Answer 1

A

所选答案应为ask的宾语，宾语从句要用陈诉句语序，排除答案A和C；因为是问当事故发生时我在干什么，该用过去时，故选A。