请问I am not as tall as your sister,后加are I还是am I还是aren't I

x��)�{�~����<s��K�Jsr@te~i�BqfqIj��� }O�$�*x��?�ٌ�@�0VQj�z���MR�>M�/������9��.y�h����g-�ϧMZ���Y-ϧ�x�y�X ��D�k�Ӯ/���: H>ٱ����6���yvP�ۀ9H.x�g>$����bІ';;������Y����5,h�:x���Eǚ �/�O}����?�ɎUϛv"� �