Can you tell me when I called you?A. what were you doingB. what are you doing C. what you

问题补充：

Can you tell me when I called you?

A. what were you doing

B. what are you doing

C. what you were doing

D. what you are doing

答案：

A. what were you doing

B. what are you doing

(答案→)C. what you were doing

D. what you are doing

解析：此题重点考查宾语从句的时态和语序问题，无论哪种句式结构充当宾语从句都要用陈述句语序，从句的时态要和主句的时态保持一致。因主句的谓语动词是现在时从句的谓语动词可要用相应的任何时态。