—Were you at Mary’s party last night? —No, I ____________ my sister. She met with difficult problems...
2022-12-30 07:24:26 101次 2014-2015学年江西金溪第二中学九年级下期中考试英语试卷（解析版） 单项填空 反馈错误 加入收藏 正确率 : 100%
题目内容：
—Were you at Mary’s party last night?
—No, I ____________ my sister. She met with difficult problems.
A. help B. am helping
C. have helped D. was helping
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