To most people coffee can keep them after they worked hard.A. feeling tiredB. from feeling

问题补充：

To most people,coffee can keep them after they worked hard.

A. feeling tired

B. from feeling tired

C. feeling tiring

D. from feeling tiring

答案：

A. feeling tired

(答案→)B. from feeling tired

C. feeling tiring

D. from feeling tiring

解析：keep sb.doing sth.表示“让某人一直干某事”，而 keep sb.from doing sth.则表示“阻止某人干某事”，再根据句意，B项合适。