按要求改写句子。5J-P4d;O9u2U0H9S5p'X(k
我们的日子一去不复返。5J-P4d;O9u2U0H9S5p'X(k
1．改为疑问句：9z6Z)@*\4V6H,h'Q-i'I5J-P4d;O9u2U0H9S5p'X(k
2．改为反问句：3^3O']-O;}/?-N2k.f5J-P4d;O9u2U0H9S5p'X(k
3．改为双重否定句：6Y3M4{1^5j(},_7M4i/|'G+\0R)}5J-P4d;O9u2U0H9S5p'X(k