It was only after he had read the papers Mr. Gross realized the task before him was difficult to com...
2022-11-07 05:07:46 160次 2014-2015学年江苏涟水中学高二12月月考英语试卷（解析版） 单项填空 反馈错误 加入收藏 正确率 : 100%
题目内容：
It was only after he had read the papers Mr. Gross realized the task before him was difficult to complete.
A. when B. that C. which D. what
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