【推荐2】________ he had spent years apart from home and endured extreme conditions, Deng Jiaxian refused to back down from his responsibilities.

A．Because

B．Unless

C．Although

D．Since

【推荐1】The book won’t be published until next year, ________ is disappointing.

A．which

B．when

C．why

D．that

【推荐1】________   new cases have been rising since last week, the proportion of intensive care beds ________ by COVID-19 patients has dropped from two weeks ago.

A．While; occupied	B．Whether; to occupy
C．Although; occupying	D．When; occupied

【推荐3】________ implementing these new measures is not easy, one positive sign is that residents started actively negotiating with those tasked with their implementation.

A．While

B．Once

C．Because

D．Whether