I didn\'t because I____ a film.(A.had watched B.have watched)怎么做

I didn\'t because I____ a film.(A.had watched B.have watched)怎么做
I didn\'t because I____ a film.(A.had watched B.have watched)怎么做

I didn\'t because I____ a film.(A.had watched B.have watched)怎么做
应该选A,因为didn't 表过去式,再按备选项,所以得出答案：即用过去完成时.