高中英语.perhaps I ---- Swim across the nver,but in that situation,I--- do that.perhaps I ---- Swim across the nver,but in that situation,I--- do that. A,am able;couldn't. B,cowld;was able to. C,was quite able to;could. D,couldn't ;

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高中英语.perhaps I ---- Swim across the nver,but in that situation,I--- do that.perhaps I ---- Swim across the nver,but in that situation,I--- do that.      A,am able;couldn't.    B,cowld;was able to.   C,was quite able to;could.     D,couldn't ;

高中英语.perhaps I ---- Swim across the nver,but in that situation,I--- do that.perhaps I ---- Swim across the nver,but in that situation,I--- do that. A,am able;couldn't. B,cowld;was able to. C,was quite able to;could. D,couldn't ;
高中英语.perhaps I ---- Swim across the nver,but in that situation,I--- do that.
perhaps I ---- Swim across the nver,but in that situation,I--- do that. A,am able;couldn't. B,cowld;was able to. C,was quite able to;could. D,couldn't ;was able to. 请说明理由,谢谢.

高中英语.perhaps I ---- Swim across the nver,but in that situation,I--- do that.perhaps I ---- Swim across the nver,but in that situation,I--- do that. A,am able;couldn't. B,cowld;was able to. C,was quite able to;could. D,couldn't ;
D,couldn't ;was able to
A 是时态不一致
B 无转折意味,题干有but
表示在过去具体某一次(but in that situation)不用could,要用was able to,排除C
请在客户端右上角评价点“满意”即可,

D,couldn't ;was able to

A 是时态不一致
B 无转折意味, 题干有but
表示在过去具体某一次(but in that situation)不用could, 要用was able to, 排除C



如不明白请追问,如果满意请采纳
手机提问者如果满意,请在客户端右上角评价点“满意”即可, 谢...

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D,couldn't ;was able to

A 是时态不一致
B 无转折意味, 题干有but
表示在过去具体某一次(but in that situation)不用could, 要用was able to, 排除C



如不明白请追问,如果满意请采纳
手机提问者如果满意,请在客户端右上角评价点“满意”即可, 谢谢!
祝学习进步

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