-----Why can’t you answer my question? I gave you some tips just now. -----Sorry. I a maga

问题补充：

-----Why can’t you answer my question? I gave you some tips just now.

-----Sorry. I a magazine.

A. read

B. had read

C. was reading

D. am reading

答案：

A. read

B. had read

(答案→)C. was reading

D. am reading

解析：考察时态.句意:你为什么不能回答我的问题?我刚才已经给了你提示了._对不起,正在读一本杂志.故选C.