The World Health Organization warned that Asian countries __________ attentive to bird flu since Asia ___________ got rid of the disease completely.

A．should keep; has

B．must remain; has not

C．ought to stay; has been

D．shall be; has not been

张大来的原户籍所在地在杨村，1994年张大来从杨村开出迁住证，迁往李村。但在李村登记前，张大来得病，在县城医院住院一年零三个月。病愈后张大来前往北京市打工，并在某区办理了暂住证，居住期限为6个月，现住在某区某街道某宅。现问，张的住所确定为何处()

A．杨村

B．李村

C．县城关医院

D．北京某区某街道某号