D don't need to
句意是：我不累,不需要休息.
need 做情态动词时,后面直接加动词原形,所以是 needn't have a rest ,选项C 多了个 to .
need 做实意动词时,后面跟动词不定式,所以是 don't need to have a rest ,项B 少了个 to.
A 与句意不符.