单选题 Every member of society has to make a ______ to straggle for the freedom of the country.

【正确答案】 A
【答案解析】make a pledge to do sth发誓做某事或保证做某事。warranty保证书；resolve已决定的事；guarantee保证，担保；guarantee也有“保证”之意，但不能与make搭配，可与give连用。句意：社会每位成员都必须宣誓为国家自由而战。