I can’t be sure that we will win but I that our team will play hard to win the championsh

问题补充：

I can’t be sure that we will win but I that our team will play hard to win the championship.

A. guarantee

B. remind

C. require

D. doubt

答案：

(答案→)A. guarantee

B. remind

C. require

D. doubt

解析：句意：我不能确定我们会赢但是保证我们队会尽力赢得冠军。guarantee担保；保证；remind提醒；使想起；require要求，后接宾语从句，要用（should）+动词原形；doubt怀疑。根据题意，只有A项正确。