虚证不寐的病理变化，主要与下列哪项有关（）

A.阴血不足

B.气血两虚

C.脾虚胃弱

D.胆虚有热

E.阳气不足

Everything he _____ to his country. [      ]

A. had was contrbuted      

B. had been contributed

C. had to be contributed    

D. had contributed