—Who called just now, Sam?—It’s Mona. She asked .A. that Peter was inB. if was Peter inC.

—Who called just now, Sam?
—It’s Mona. She asked .
A. that Peter was in
B. if was Peter in
C. if Peter was in
D. whether was Peter in

A. that Peter was inB. if was Peter in(答案→)C. if Peter was inD. whether was Peter in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过去式从句的谓语动词也要用相应的过去时态。

就是这个解释