题目内容
22、――Did you see Grace in the teacher’s office？
――Yes, she ______to him why she didn’t hand in her assignments
A. is explaining B. was explaining C. had explained D. explained
试题答案
22、B
解析：根据题意可知，我过去看到Grace了，当时她正向经理解释没有交作业的原因，所以用过去进行时态。
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——Did you see Grace in the teacher’s office？
——Yes, she ______to him why she didn’t hand in her assignments
A. is explaining B. was explaining C. had explained D. explained
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