201. Tom _____ into the house when no one . A．slipped; was noticing B．had slipped; noticed C．slipped...
2023-01-30 11:25:10 50次 2010届高考二轮复习必备词汇及应用训练系列：动词（二） 单项填空 反馈错误 加入收藏 正确率 : 100%
题目内容：
201. Tom _____ into the house when no
one .
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A．slipped; was noticing
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B．had slipped; noticed
|
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C．slipped; had noticed
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D．was slipping; noticed
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本题链接：
