—It is said that John’s paper got an A. —He deserves it．He _________ a lot before he handed it in. A...
2022-10-21 00:46:52 40次 2015年北京市海淀区高三一模英语试卷（解析版） 单项填空 反馈错误 加入收藏 正确率 : 100%
题目内容：
—It is said that John’s paper got an A.
—He deserves it．He _________ a lot before he handed it in.
A． prepared B． prepares
C． had prepared D． has prepared
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