
Simon () while he () his bicycle and hurt himself.
a.fell;wasridingbfell;wereridingchadfallen;rodedhadfallen;wasriding这题是选a还是d,为什么...
a.fell;was riding b fell;were riding c had fallen;rode d had fallen;was riding
这题是选a还是d,为什么 展开
这题是选a还是d,为什么 展开
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a 第一空与后面的hurt一致,因为它们有‘and’连接
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