They guarantee ____ free repair service within the first two ye

They guarantee ____ free repair service within the first two years after you buy the car.
A、to offer
B、offered
C、offering
D、offers
【正确答案】：A
【题目解析】：【考点点击】本题考查 guarantee to do sth.的用法。【要点透析】 guarantee to do sth.的意思是“保证做某事”,为固定搭配。本句意为:他们保证给你的新车提供两年的免费维修服务。