they have been talking for the whole five hours 变疑问句

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theyhavebeentalkingforthewholefivehours变疑问句theyhavebeentalkingforthewholefivehours变疑问句theyhavebeenta

they have been talking for the whole five hours 变疑问句
they have been talking for the whole five hours 变疑问句

they have been talking for the whole five hours 变疑问句
they have been talking for the whole five hours , haven't they