高中英语.perhapsI----Swimacrossthenver,butinthatsituation,I---dothat.
perhapsI----Swimacrossthenver,butinthatsituation,I---dothat.A,amable;couldn't.B,cowld;wasableto.C,wasquiteableto;could.D,couldn't;wasableto.请说明理由,谢谢.
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