时态 CATHERINE :Has lan sold his house yet?CATHERINE :Has lan sold his house yet?一般过去式 还是 过去完成时?

x��)�{6}۳�Fg�� O?W+��b���<�������b�����T���{�T=���c͋��O�v?�ӯ�b��g3�+@��<����&�H�4��:���;�
��}��Y
�y�g׋ ��g�u@���]۞�m�y�{��훞���;�ɮ�g����d<�0���<;��l�4�������