Would you like to watch the 3D film RMS Titanic with me?—I’d love to,though I______ it twice

Would you like to watch the 3D film RMS Titanic with me?—I’d love to,though I______ it twiceA.sawB.was seenC.have seenD.had seen选项是C根据twice一词可知,要用【现在完成时】.【我虽然已经看过泰坦尼克号...