Question

【题目】You feel all the training a waste of time, but I'm a hundred percent sure later you'll be grateful you did it.
A.should
B.need
C.shall
D.may

Answer 1

【答案】D
【解析】句意：你可能觉得所有的训练都是浪费时间，但是我有100%的把握你以后会感激它的。should”应该“；need”需要“；shall”将会“；may”（不确定）可能“。所以选D。