Question

【题目】You may feel all the training a waste of time,but I'm a hundred percent sure later you will be gthat you did it.

Answer 1

【答案】grateful
【解析】考查形容词。句意：你可能觉得所有的训练都是浪费时间，但我百分之一百肯定以后你会感激你做的。系动词后使用形容词作表语。根据题意，故填grateful。