Everything he to his country.A. had was contributedB. had been contributedC. had to be c

问题补充：

Everything he to his country.

A. had was contributed

B. had been contributed

C. had to be contributed

D. had contributed

答案：

(答案→)A. had was contributed

B. had been contributed

C. had to be contributed

D. had contributed

解析：考查主语从句.句意:他所有的一切都献给了国家.everything he had为主语从句,谓语动词用单数形式.be contributed to献给,本句强调的是过去的动作,故选A.